I'm currently playing on a denis wick 2 mouthpiece and now feel that I could do with trying something bigger! I've had a search around and the only mouthpieces I can find with a bigger cup diameter are Schilke ones (they go up to 18.5mm as opposed to the 17mm I'm on now) but have a reduced bore (3.734mm as opposed to the 4.572mm i'm on now). Ideally I'd like to try one with an increased cup diameter and bore but cant find anything. All help appreciated! Failing this does anyone know of anywhere (preferably in the Bristol area) that will bore out my current mouthpiece for me?????