ACMX,
I recently purchased the slide. After getting use to it, It's great! Admittedly, It's a little cumbersome at first. Dave good was very helpful in Assisting me with the setup. It's a bit of a disconnected Feel but once you get in the rhythm your fine. I haven't skied in approximately 7 months do to a back injury. it does very good job in eliminating load on your upper body. I skied multiple sets with it and only experienced tenderness in my biceps. if you have any upper body injuries that you need to protect, or would like the ability to ski longer sets, the power vest is the ticket!