My 14 year old son broke his lower leg (tibia) in a fall this weekend at 32mph. He had a D3 leverage binding on with and RTP. All three my kids ski and are just busy settling into the sport, but such an injury is quite discouraging. I want to do what I can to avoid a repeat and are considering that he changes to a t-factor binding with rtp or a t-factor double binding set-up. Some advice and opinions will be great, as there are very little to no proper research available on different binding set-ups and injury rates.