diff --git a/gossamer_forums.rb b/gossamer_forums.rb
index 63f68e1..a405a5e 100644
--- a/gossamer_forums.rb
+++ b/gossamer_forums.rb
@@ -1,7 +1,7 @@
 # Federated Computer, Inc.
 # David Sainty <saint@federated.computer>  2024 A.D.
 # Gossamer Threads to Discourse -- Migration-Import Script
-# v0.45 SQLIte mutexes only wrap around updates now
+# v0.46 Restore use of ConnectionPool, tweak threads, mysql pool size, timeout, add full stacktraces
 
 require 'mysql2'
 require 'open-uri'
@@ -469,6 +469,7 @@ class GossamerForumsImporter < ImportScripts::Base
       upload
     rescue => e
       puts "FAILURE: Failed to upload attachment #{filename} for user_id #{user_id}: #{e.message}"
+      puts e.backtrace.join("\n")  # Print the full stack trace
       nil
     end
   end
@@ -484,6 +485,7 @@ class GossamerForumsImporter < ImportScripts::Base
       upload
     rescue => e
       puts "Failed to upload attachment #{filename} for user_id #{user_id}: #{e.message}"
+      puts e.backtrace.join("\n")  # Print the full stack trace
       nil
     end
   end
@@ -537,6 +539,7 @@ class GossamerForumsImporter < ImportScripts::Base
 #      file
 #    rescue => e
 #      puts "Failed to download file from #{url}: #{e.message}"
+#      puts e.backtrace.join("\n")  # Print the full stack trace
 #      nil
 #    end
 #  end
@@ -755,6 +758,7 @@ class GossamerForumsImporter < ImportScripts::Base
       png_path if File.exist?(png_path)
     rescue => e
       puts "Failed to convert image #{file_path}: #{e.message}"
+      puts e.backtrace.join("\n")  # Print the full stack trace
       nil
     end
   end
@@ -767,6 +771,7 @@ class GossamerForumsImporter < ImportScripts::Base
       resized_path if File.exist?(resized_path)
     rescue => e
       puts "Failed to resize image #{file_path}: #{e.message}"
+      puts e.backtrace.join("\n")  # Print the full stack trace
       nil
     end
   end
@@ -858,6 +863,7 @@ class GossamerForumsImporter < ImportScripts::Base
         FileUtils.copy_file(resized_image_path, resized_temp_file.path)
       rescue => e
         puts "Skipping image due to resize failure: #{temp_file.path}"
+        puts e.backtrace.join("\n")  # Print the full stack trace
         temp_file.close
         temp_file.unlink
         next
@@ -1069,15 +1075,19 @@ class GossamerForumsImporter < ImportScripts::Base
   # Get list of TOPICS / OP posts, i.e. post ids that have no parent / root id - SELECT post_id FROM gforum_Post WHERE post_root_id = 0;
   def threaded_topic_import
 
-###    # Define the connection pool inside the method
-###    mariadb_pool = ConnectionPool.new(size: 20, timeout: 500) do
-###      Mysql2::Client.new(
-###        host: "slowtwitch.northend.network",
-###        username: "admin",
-###        password: "yxnh93Ybbz2Nm8#mp28zCVv",
-###        database: "slowtwitch"
-###      )
-###    end
+    # Use CachedThreadPool for dynamic thread management
+####    pool = Concurrent::CachedThreadPool.new
+    pool = Concurrent::FixedThreadPool.new(7)
+
+    # Define the connection pool inside the method
+    mariadb_pool = ConnectionPool.new(size: 14, timeout: 100) do
+      Mysql2::Client.new(
+        host: "slowtwitch.northend.network",
+        username: "admin",
+        password: "yxnh93Ybbz2Nm8#mp28zCVv",
+        database: "slowtwitch"
+      )
+    end
 
     # The query selects post_ids from gforum_Post where post_root_id is 0, meaning these posts are the topic starters (OPs).
     # Execute the query and fetch the result
@@ -1087,7 +1097,7 @@ class GossamerForumsImporter < ImportScripts::Base
     # Convert the result set to an array of post_ids
     parent_post_ids = result.map { |row| row['post_id'] }
 
-    parent_post_count = parent_post_ids.count
+#    parent_post_count = parent_post_ids.count
     batch_size = 10 # Set our batch size for number of posts to import in a single batch
 
 ####    current_post_batch = 0 # Set our current batch number. This tracks the current batch of posts being processed.
@@ -1098,10 +1108,6 @@ class GossamerForumsImporter < ImportScripts::Base
     ###   mutex = Mutex.new      # Mutex for MySQL2 operations  --  disabled as this may not in fact be necessary - TBD.
     sqlite_mutex = Mutex.new  # Mutex for SQLite opreations
 
-    # Use CachedThreadPool for dynamic thread management
-####    pool = Concurrent::CachedThreadPool.new
-    pool = Concurrent::FixedThreadPool.new(11)
-
     # Run until all posts have been processed.
     until is_complete
 
@@ -1145,8 +1151,8 @@ class GossamerForumsImporter < ImportScripts::Base
 ####          )
 ####    puts "PP 22 --  #{post_id}"
 
-          begin
-#####            mariadb_pool.with do |mysql_client|
+          mariadb_pool.with do |mysql_client|
+            begin
 
               puts "PP 11 --  #{post_id} -- Checking MySQL connections status.."
 ####    puts "    FIRST Checking MySQL connection status..."
@@ -1161,7 +1167,7 @@ class GossamerForumsImporter < ImportScripts::Base
                 post_status = post_status(post_id)
                 if post_status.nil? || post_status == 0
                   puts "Starting import for post_id #{post_id}"
-                  topic_import_job(post_id, sqlite_mutex)  # Import topic and its replies
+                  topic_import_job(post_id, sqlite_mutex, mysql_client)  # Import topic and its replies
                   sqlite_mutex.synchronize do
                     mark_post_as_complete(post_id)  # Mark as complete in SQLite table
                   end
@@ -1169,12 +1175,12 @@ class GossamerForumsImporter < ImportScripts::Base
                   puts "Skipping post_id #{post_id}, already processed."
                 end
               end
-#####            end
-          rescue => e
-            puts "Error processing post ID #{post_id}: #{e.message}"
-            sqlite_mutex.synchronize do
-              mark_post_as_failed(post_id)
-            end
+            rescue => e
+              puts "Error processing post ID #{post_id}: #{e.message}"
+              puts e.backtrace.join("\n")  # Print the full stack trace
+              sqlite_mutex.synchronize do
+                mark_post_as_failed(post_id)
+              end
 ####            ensure
 ####            # Ensure the MariaDB connection is closed after processing
 ####            mysql_client.close if mysql_client
@@ -1186,6 +1192,7 @@ class GossamerForumsImporter < ImportScripts::Base
 ####    else
 ####      puts "    MySQL connection is valid"
 ####    end
+            end
           end
         end
       end
@@ -1217,15 +1224,15 @@ class GossamerForumsImporter < ImportScripts::Base
 #  end
 
   # Method to import an entire topic, including its first post and all subsequent replies
-#####  def topic_import_job(post_id, mysql_client, sqlite_mutex)
-  def topic_import_job(post_id, sqlite_mutex)
+  def topic_import_job(post_id, sqlite_mutex, mysql_client)
+#####  def topic_import_job(post_id, sqlite_mutex)
     puts "TIJ ZZ post_id #{post_id}"
-    mysql_client = Mysql2::Client.new(
-      host: "slowtwitch.northend.network",
-      username: "admin",
-      password: "yxnh93Ybbz2Nm8#mp28zCVv",
-      database: "slowtwitch"
-    )
+#####    mysql_client = Mysql2::Client.new(
+#####      host: "slowtwitch.northend.network",
+#####      username: "admin",
+#####      password: "yxnh93Ybbz2Nm8#mp28zCVv",
+#####      database: "slowtwitch"
+#####    )
     puts "    FIRST Checking MySQL connection status..."
     if mysql_client.query('SELECT 1').nil?
       puts "    MySQL connection is not valid"
@@ -1293,6 +1300,7 @@ class GossamerForumsImporter < ImportScripts::Base
               else
                 raise e
               end
+              puts e.backtrace.join("\n")  # Print the full stack trace
             end
           end
     
@@ -1408,6 +1416,7 @@ class GossamerForumsImporter < ImportScripts::Base
 #            rescue ActiveRecord::RecordInvalid => e
 ##            rescue => e
 ##              puts "Error importing reply with post_id #{reply_row['post_id']}: #{e.message}"
+##              puts e.backtrace.join("\n")  # Print the full stack trace
 ##            end
           end