I've shot a lot of bows over the past 3-4 years. About 6-7 months ago I stumbles into a Zipper extreme and quickly fell in love with it. That bow went to my buddy when I bought a second all bamboo Zipper.
I'm sold on them. Never had a recurve as light in my hand as a Zipper. They're very quiet shooting bows, very pointable, they feel good in my hand. A new one will cost you hundreds less than a comparable bow from other top dog bowyers.
I've been looking at the ACS's as they come through the classifieds, and in the end I figure my Zipper shoots right with them as far as speed/shootability and for several hundred less.