The choice of mouthpiece for this method of playing is very important. A mouthpiece with a shallow cup works far better than one with a deep cup. I have tried many different mouthpieces in both the Bach and Schilke range and settled on the Schilke 10A4 for a period of time, but then decided to try something with a wider rim / cup to enhance control. Mouthpieces that work extremely well are the Yamaha Bobby Shew Lead, and surprisingly, the Kelly Screamer, but with a metal enhancer fitted to give it improved mid to low resonance (see photo). The best for me now however is the Warburton 4M cup with a No6 Star (*) backbore. I have in the past played some time on the Callet mouthpieces that are available for Superchops, namely the Superchops 1 (SC1) and the Superchops 2 (SC2) and Superchops 3 (SC3 - best one), but found that the intonation did not suit my current choice of instrument (Conn Vintage One).