Standard

Euro

I don't really notice that much of a difference. How much of a difference does it make. Do I need a certain shank for a my tuba?
Also another question, mainly about Gidding & Webster Mouthpieces. Why is the stainless steel mouthpiece shape different from the titanium?
Stainless Steel Bayamo

Titanium Bayamo

That would make me think you would get a different sound from the titanium mouthpiece, and the reason wouldn't just be the material but the shape too. Am I wrong?
Also just a personal note, would you march with a Giddings & Webster personally, or are they a tad too pricey for that?