Found a deal on ebay for a Yamaho 4C mouthpiece complete with the ligature and cover. Couldn't resist, Had watched some videos about upgrading from the stock (no name) mpc's and a comment made months ago on the forum stressed that they have a greater influence on the sound than the horn. I should have it by early next week. One of these days--a PPT! What kind of expectations should I have of the Yamaha? I'm sure it can't hurt, at least!