I just read a thread by TMer AMAZINGMORRIS with a mouthpiece question. But what caught my attention was his mention of using vaseline on his lips because he has a "wet emouchure, and wants to reduce the accumulation of spit in the trumpet". His concern was about the effect of the vaseline on the mouthpiece finish, but my concern is about using vaseline. I've been fooling with a Kelly mouthpiece and find myself going dry quicker than usual; metal also. I'm interrupting some passages and phrases that I normally wouldn't, just to lick my lips. What's the "skinny" on this development?