Everyone bashes on Griffions but they really aren't a bad binding if you set them up proper they work glorious. I am about 160 ish geared up and ski at a din of 9 on my soft snow skis and 8 ish on my park skis (I don't ride park much, more so for dicking around when there is no snow) and haven't had any problems. I regularly huck cliffs 20 down and 20 out and I like to think I charge pretty hard around the resort most days. I have had no binding explosions or pre releasing. I went through a pair of z12s and blew up the toe piece in less than 8 days. Since the griffion toe got revised a few years ago they seem to have a lot left problems than the original complete plastic toe. I sell the attacks at the shop I work at they seem to be one hell of a binding so really i would end up going by price. I pretty sure the weight difference is negligible especially since it has very little affect on swing weight due to where they sit on the ski. Stack height I believe is within a few millimetres which you probably won't notice. Anyways good luck on your decision both are solid bindings.