i got two mousepads and cut a shap that fits the shape of the tongue on my SPKs, and that has significantly helped!(i got the idea here on NS, i cant remember who was doing it but thank you) before that though i would rap my calf area to my ankle in medical tape shit that helped alot too. another idea is if you dont have mousepads laying around or you dont have medical tape get two socks and put it between your shin and the tongue of your ski boot and that has helped me alot too,
anything that can minimize the gap between your ski boot and your shin will help(aslong as its soft)
or, you could just put pre wrap on your legs.. thats what athelets do when the wrap there ankles and what not.. not pain, all gain
shin bang occurs from your foot sliding in your boot and hitting the front. It can be solved by getting a boot that fits correctly (usually smaller). However sizing down in boots isn't always the best option because it may lead to other pains in your foot from the boot being too small.
So other options include getting custom footbeds (stop foot from moving as much), tightening your top buckles more (keep boots buckled when your not using them), adding in 'tongue eliminator thingys' on the inside of the tongue, pulling the strap on the top harder, and getting a booster strap.
And obviously you can also go with the home-made double upping on socks (can be harmful if it causes your foot to slide more or just folding down your sock to get more padding.
And saying not to land backseat or learn to ski better is retarded. If your a good skier and your pushing yourself you will inevitably and should land backseat when learning new tricks. If you can land every new trick you try, then good job you should go to the x games.