My proposition is this:
Gauss weapons instead of wounding anything on a 6 regardless of toughness on the "to wound roll" instead, automatically wound on the roll of a 6 to hit. (Kind of rending but without ignoring Armour). The vehicle rules remain the same with the glancing hits happening on the AP roll. This rule would make all gauss weapons only slightly better than they already are but it would be a noticeable difference. It would also mean that the gauss's wounding ability was not only useful against the occasional wraithlord but against everything which seems appropriate.
It just seems a lot more fluffy with all this talk of men being flayed alive and such because right now the only things that I see getting flayed are T8 opponents!
This is my first post hope you like it!