nomensteven is right, boots only help prevent shin bang, not fully. if you land backseat in any boot your shins will hurt, the spk's have the rear spoiler which will help a little, but you can still get it. ways to solve shin bang are getting stronger, more padding, more flex in your boot e.t.c.
what i did was put padding on the sides of your shins where there is muscles, than the pressure is evenly distrubuted, that worked for me. the best thing to do, go to a surefoot, they will help you!