I just posted this in the "Shintronics" thread, but it is probably appropriate in this one too, so here it is again.
There is NO PRODUCT that can "eliminate" shin bang. Shin bang is caused by being backseat, and no matter what kind of shit you put in your boots, if you still get backseat a lot, the shinbang will continue to be a problem.
When you land or ski backseat, the periosteum (membrane that covers the bone) gets irritated in the front of the tibia, because it is being stretched too much as the bone flexes over the back of the boot. The fibrous tissue that connects to the bone gets broken down, and that is why the front of your shin gets so sore.
So, to treat the "symptom" you can use accessories, ice, advil, shave, etc. But to truly treat the CAUSE, you need to focus more on your stance than on any piece of merchandise.
That's why most pros (who ski hundred+ day seasons), simply use properly fitted ski boots, and except for custom footbeds, you generally won't see a pro using "boot accessories".