Replying to Shins are always getting briused. How do I stop??

Hey,
My shins are always getting briused everytime I go out and launch jumps. Especially If I land in the back seat. I got salomon 1080 boots and its still happening. I usually ride in NY, so it sucks, but I got to go to UTAH for a week. So I was dropping some nice cliffs, and one day I got the courage for a 35 fter, I landed and exploded into powder and bruised the SHIT out of my shins, since then it's been bad after eveytime I do a 360 or just land a little back on the jump. The 1080 boots might be a lttle big for me because they packed in, so I'm going to try a size smaller next time. But still I don't think it will help, I also wanted to try the salomon Performa 7.0 boot. I tryed one on and they flex nice and they have good padding. So i'm wondering if I need a softer boot?? I figured the 1080 boot was soft enough. or Maybe the smaller size will help. Any INFO would be great. Thanks