Bach Artisan Bb Trumpet Conversion -Precision Medium wt Receiver, Ldpipe modification -Body Alignment, Bell stem weight sleeve -Valve alignment Chemical Clean, Ultrasonic valves-Slides ReThread-Refit valve caps Refit leaking Main slide, align-reset Remove Debris, hand lap valves + casings Custom design-build receiver Precision fit mouthpiece setting Play test, adjust for best position Final trim Mount clean, Brite Finnish Buffing then lacquer Finish work, Re-design mouthpiece Custom redesigned mouthpiece to compliment new receiver. Steve Hawk in the shop, Testing his Camarillo Modified Bach Artisan. ReTapered mouthpiece backbore for an even more precise fit. What an incredible Player Bach Artist Steve Hawk.