Not a bad solution, however I just bought a right angle ratcheting screwdriver set from Lowes for $10. (great for tight spaces) It includes about 5 or 6 different sizes of "security Torx" bits that fit the screws that are used in the Brukus kit.
Just a heads up, the security screws are readily available from most hardware stores, as are the blind nuts.
I did the same thing to my bags after hearing about them falling off, however I used brass toilet tank to bowl bolts. They have a very shallow head which keeps them low profile and the brass is water and weather proof. I crimped the blind nuts a bit to make the screws an "interference" fit to prevent vibration from loosening them. I wasn't going for security as an anti-theft, but as a "save $1K on a replacement bag" type of security.
I believe I can't really stop someone from taking my bags if they want them bad enough and they have enough time to do so (short of welding them on), but I CAN prevent them from falling off inadvertently.
Just a minor clarification: the Brukus bolts have a pin in the center. The Torx-LIKE tool that they provide has a hollow center, so that its shaft fits over that pin, so that the rest of the tool can engage the rest of the inside of the bolt head. Thus, I'm pretty sure that an ordinary Torx bit won't work on these bolts.
That said, in keeping with what you say, anyone with a pry bar can open the saddlebag lids and get at the contents. Anyone with a knife, screwdriver, key, etc., can damage them big time.
I got my Brukus set shortly after buying my XCT mostly because I read some posts of the stock fasteners coming updone. That is, not only don't I want my bags stolen, I don't want them bouncing down the road, either.
Regarding damaged bags, BTW, I also posted a rant concerning how expensive parts for the bags are (see Everyone Realize How Expensive Saddlebag Parts Are?
), the executive summary of which is that it's cheaper to buy a new set of TWO than to buy parts for ONE bag. Go figure.