Steps to cure shinbang if your skiing form is already decent. We all have the occasional back seat landing, overshoot, ect, it happens to everyone.
1. Custom footbeds
2. Tight/proper fitting boots
3. Booster straps
4. Calf raises, toe lifts, shin strengthening execises
5. Stretch calves and shins every night
6. (optional lol) wider, stiffer, more supportive skis. I get horrendous bang on my park sticks, and then virtually none when doing the same type of skiing on the pow sticks
7. if you get shin bang, always strectch both calves and shins, along with getting all the crunchies (muscle tea and knots) with a good foam roller
hope that helps

this is the first year I've skied with little to no shin bang after doing all these steps