Finished this up for a client. First big project on the Class 4. Used the new attachments from @Patrick1 that @Tim Schroeder recommended. 277 top thread, 207 bottom thread, 25 needle. Drum dyed Hermann Oak, except liner. it's for a Ruger .45 LC Single Action. Customer signed the invoice before he left. Scanned it the signature to use for laser engraving his name inside. Burned off the thread ends after pics.