I also think the shorty is the better mouthpiece....less stuffy but for some tenors, you really need the long one to get it to not fall off. I would put equal long shanks (vintage) to be worth under $100 and shorties at $350+ for alto. In a D or larger a shortie could fetch a lot more. I think a shory E sold for nearly $700 on ebay a while back. I have a C* shorty and it is still a great mouthpiece although I never use it now. The LT is a fairly closed mouthpiece with a small round chamber. Never liked them myself, too much work to play. I think most of the scroll LTs were long shanks although I recall them being around prior to 1966ish when the shorties stopped.