Ok, what i have learned the last couple of years is to keep my knees bent and not be hunched over. When you first start skiing, staying forward is everything, but later you realize you are hunched over and absorb bumps too much with your hips, propelling your torso forwards. It really hinders your skiing. Concentrating on not being hunched over and knees very bent can really help. Think about keeping your back back while you are skiing. Having short poles forces me to either be real forward stanced or knees bent and low. My knees are to bad to ski well that way on the first run, but after that i'm usually good. With your bindings mounted more forward, you should be able to keep your butt pretty far back, but you still don't want to be popping wheelies and all back seat. Some people of course say to keep your shins against the front of your boot. I have really found that by allowing my knees to bend a lot, like when u r skiing the moguls can get you through almost any last minute turn or adjustment for tight trees or whatever without having to suddenly hockey stop or fall on your ass. You place your skis up and over a hump instead of slamming into it with your whole body.
When i take off from a cliff I pop and get tucked up. And hands in front of you helps keep your balance forward. and sometimes u can land that way if it is a good steep landing, but usually you extend your legs just before impact so you can absorb the impact by bending your knees. If you land in deep snow it's real easy to do a summersault by absorbing with your hips and not so much your knees. A lot of people just do a good backslap to keep from going over the handlebars, which is sometimes almost unavoidable in certain snow conditions off certain drops, but most landings can be made clean by maximizing the shock absorbtion with your legs. I've seen rollerbladers drop huge and land on flat concrete keeping there speed up and by really utilizing their legs as shock absorbers. Utilizing my knees more has really helped me ski out of a lot more landings the last couple seasons. It is so important to be forward and not backseat, but i feel that being hunched over hindered me for a long time i am finally where i can keep my torso back, but not be backseat if that makes sense to you. You can be in a good knees bent, torso back position and be pulling a wheelie, or be diving forward over a roll.
If you have any specific questions, maybe we can exchange insight on them too.