Replying to VOLKL V PRO PROBLEM

Towards the end of the season i started going really huge in the park, my 03 v pros apparently couldn't take the beating, i have ripped the bindings out of the skis 3 times. i cannot afford have this happen again. Someeone told me that the skis are without a metal topsheet for weight savings which would explain the lack of bite for the screws. I also have marker race stock bindings which could also be the problem (they are in the trash can). Has anyone else had this problem?