I just picked up some Yale Crystaline the other day at a local shop. More than I would ordinarily spend, but I figured I would try something new. So far, I like it a LOT. Runs smooth, and seems to hold up pretty well. The only thing I don't like about it is that the core is VERY tough to cut through.
Any of you guys use the stuff? I think I wound up spending like $2.13 / foot or around there.