If my MX78 sells I am going to purchase a pair of MX83's. I think the 173 size will work better for me than the 176 on the MX78. I can get a very good deal on the 173 MX83's but they come with the Kastle Powerrail binding. I am a little skeptical about getting a ski with the powerrail binding. I have only bought flat skis for myself and always have either Griffon's or Jester bindings. I looked at the specs of the Tyrollia Powerail binding, which is what the Kastle is just with the Kastle name on it, and it says the height is 33.5mm. I looked up the specs on the Griffon and Jester and it says the height is 22mm. That is 11.5 mm difference which seems rather large. What are the pros and cons of a raised binding like that of the Powerrail? I can't demo them since no one in my area carries Kastle demos so don't want to make a back choice since they are so expensive.