I've never ridden the walls but I have punx and can talk about those. Punx are incredibly light, soft and yet really stable, and overall really fun. They suck horribly for all-mountain though. In my experience they have had really strong edges (but I have heard otherwise from other people). I have no edge cracks in 20ish days of straight park skiing. They do have a big issue with the sidewalls though. After a while you will get little cracks in your base because the sidewall seperates from the ski. On one of my skis it is getting really bad, but still skiable and fun. I know lots of other people have had similar problems too.