I just got an Antigua 590BC from a fine fellow SOTW member and I happened across a Morgan 5J mouthpiece. After playing a few times I noticed my lower lip being sore after tightening my embouchure to reach the high notes (palm keys). My question to the forum is this? To a soprano player, do you have to tighten so much on the embouchure to hit these notes. If not, could it be that to hit the higher notes you have to pay particular attention to your setup? I use Alexander 3 reeds or Rico Jazz select 3S. I will probably try new combinations in the future but I wanted the other SOTW members to weigh in on their initial soprano experiences and how to get over the chewed up lip syndrome. The horn I play does not appear to have any leaks and another concern could be that the tip opening of the Morgan 5J is too small? Thoughts? Thanks.