I'm wondering if there is a shop preferrably in the North west that will let me try mouthpieces and have a decent number in stock. I'm looking for a trumpet/cornet/soprano mouthpiece. The one im looking at is either a vincent bach 3E/3F for use on soprano cornet, im current playing on a vincent bach 2 1/2 c (like on my trumpet, i play on a DW 4b on my cornet) and looking to try something a bit shallower to aid my range and endurance. These in theory should do the job but i want to try one before I buy just incase it completely ruins my sound. So is there any shops that I can try mouthpieces at preferrably in the North West?