I'm currently playing a Stork mouthpiece. I found one back in high school at a music store for next to nothing. I tried it, loved it, and bought it. Recently it got chipped on the rim (by my curious little cousin dropping it

) and I had to get a new mouthpiece. I tried several but just wound up reordering the same one only in gold-plate this time

. I guess what I'm sayin is that if you want a new MP because you hope for some gain in range or endurance, then just stick with yours and keep practicing because its going to take awhile to adjust to the new one and you might not get the gain your looking for.