After band this week we were discussing mouthpieces and the quest for larger diameters, deeper cups etc. for a bigger sound. Not being too technical on these matters I presume there must be a point when the ‘balance’ between the mouthpiece, instrument bore and bell becomes 'unbalanced' which will affect intonation, tuning etc. When I played flugel I always wanted a larger mouthpiece than a DW2 (because I’m really a tenor horn player!!) but presumably a mouthpiece of 18.00mm+ diameter would cause these problems. So is there a maximum to which we can push mouthpiece diameter, depth for an instrument? I hope this makes sense and isn’t too confused!!