While I find the idea interesting, the line "huuuuge bonus! Better than everything else!!!" always rings alarm bells.
There is a balance system in place.
All mining factions have the same amounts of bonuses in this version.
Giving one something totally unique and great creates a situation in which everybody else also can say: "Hey! I want something unique and great at a great bonus as an addon to my ID, too!".
In this case, I don't see much of a problem because BMM as well as GMS are not exactly very attractive factions for players to run to, but it opens up a direction of development that needs a closer look than "this is cool, let's do it!".
If this comes, I do explicitly not want to have ANY bonus on IMG ID. It's much too hot diplomatically. I'd rather keep my santity.
