Would it Work?

No because like you said the shinbang that you have is not from actually banging your shins on the front of the boot.

When I started getting shinbang in my boots I started wearing two pairs of socks and Immediatly It was gone. Give it a try, or if you have shinbang and wanna ski just wear two pairs of socks to dampen the pain.

I have the same problem. Started chopping some very light weight foam and putting it under my sock in front of my shin. It isn't curing anything but I have to be in boots for 6 hrs daily an it makes it tolerable. R u using salmon boots by chance?

Haha yeah Salomon Kreations

I have Kreations aswell and I get pain all the time.  Ive only used them for two seasons but Im thinking of buying new boots next season because im tired of dealing with the fact that they are brutally uncomfortable.  I recomend you do the same.

I don't think you should blame the boot in particular, my friend's on his third pair of boots in three seasons, he got Kreations and loves them because he's finally found a pair of boots that actually fit his feet and don't make them sore. To the OP, play around with a bunch of different, non-permanent things to see if you can get your boots to fit better. Check out one of the earlier episodes or 4frnt Tech Talk, it shows you a tutorial of how to put foam pieces on the backs of your liners to clamp your heels/ankles into the boot better. I have the SPK Kaos, which I have worn alot thus packing out the liners alot, making them a little to big. I just tighten the 2 buckles as much as I possibly can without cutting off circulation to my foot, and wear a pair of ankle socks underneath my ski socks. This keeps my ankle alot tighter in the boot and stops my heels from lifting up, giving me alot more control on nollies and presses. As for the athletic tape idea, it could work but it could just lead to more problems. I suggest trying it out, along with different ideas and see how they each work out.