Warburton Standard Trumpet/Cornet Tops

Warburtons are ver my well made, and have good intonation. I Got a 2MC top because I already had a 3MC, and was looking for something a little bigger for orchestral use. I use the 3MC and 8 backbore on E flat trumpet, and for playing first in wind band situations. The 3MC also works well if you have a quasi lead situation like in a rock band or big band-not really a true lead piece for constant playing above high C or D , though. 2MC: feels a lot bigger than the 3MC. I'm normally a Bach 1.5C player for orchestra and soloistic playing. Not sure of actual dimensions, but on my face the 2MC feels big; like a Bach 1C or 1.25C, which is not really what I expected. I was hoping for a zippier 1.5C with a little more ease in the upper register. Upper register is a tad easier, but the diameter feels like my endurance may suffer after playing awhile. I'll keep trying the 2MC.