Yes, I had the bow a week and so did Monsterbuck (two weeks between us) we shot it as much as time would allow.
The Zipstick is a smooth shooter just like all of Bill's bows. the grip is spot on and it does slang an arrow with authority. I am still a 3 piece guy, but if a one piece is what you are looking for the Zipstick will be very hard to beat.
I am a Zipper fan, and I think that Bill has a winner here. I spoke with him a week or so ago and he told me he had tweaked the design a little with his latest prototype. Therefore, I am sure that whoever orders a Zipstick will be very, very glad they did.