some good info, some bad info in here. first, which comps are they? comp 100, 120, 120 freeride? the liners are heat moldable, which will help to hold your foot where its supposed to be. your footbeds, no matter how good, arent going to do anything for the shinbang. you need the boot as tight as you can have it around your calve muscles so there is no room for your shin to 'hit' the front, it should always be against the front. as said above, booster straps are the way to go to fix this. if you still have problems, take the two allen bolts out of the back of your boots to soften them up, i did that with mine, shin bang was gone. if you still have problems, take some sort of foamy material and cut it to fit right onto the tongue of the boot. that will take up space and give you something softer to flew into. that should solve your problems