I've had national cycle saddlebag brackets fabricated a little to install the bags. They sit too high for my liking and want them lowered to follow the flow of the fender. I think they look best that way. Now here's my question, do I have to have the bracket re-fabricated to do this or would I be safe to do so by raising the hole in the bag to attach to bracket? Drilling the holes would be the easiest but worry that I might weaken the wall of the bag. Need some opinions please.