Hello tmp-ers, I was just playing my Euph, and I thought to myself "why not try your other mouthpieces." So I did! I've got the SM 3.5,4 and 5. So with the SM3.5= I had a broader sound, articulation was a tad harder to get clear, lower register was easier, upper register was a tad harder to get. SM4= kind of middle of the road, sound average, articulation reasonable to achieve, lower and upper register average. SM5= sound a tad worse, articulation easier, lower register harder, upper register just a little bit easier. I was just wondering how on earth do I know which mouthpiece is suitable for me!? Which is the one I should use!? Which is best!? :? Argh! Help me tmp-ers!