dude, try to demo some fat skis, any fat skis, with riser plates (in addition to the normal lift on any freeride type binding). Then ski the same fatties without plates. In powder and most soft snow conditions, the risers will make the skis LESS STABLE due to a higher center of gravity. Why do you think all the freeride bindings on the market don't have extreme amounts of lift?
If I were you, I'd get some Look/Rossi binders with wide brakes and NO lifters.
On the other hand, if you ski groomed, packed terrain mostly, then the risers will help you get on edge quicker and provide more leverage on hardpack, but like I mentioned in my first reply, you might as well get some mid-fats for doing that kind of skiing. Be aware that most (all??)risers consist of a plate that runs between the toe and heelpiece which increases the longitudinal stiffness of the skis to certain degrees, thus taking away flex of the ski under your foot in softer snow conditions. Most off-piste/touring skiing is done in soft snow. On extreme, steep terrain (soft snow or not), you are already almost on edge, so lifters are not needed. If you catch a lot of air, you will appreciate having the softness under your feet when you land.
You could also mount your bindings about 1/2-1 cm forward which would help you get on edge quicker.
[ December 02, 2003, 09:29 AM: Message edited by: mr x ]