The shop I work part time for has been selling the Diamonds for the last year or so. No problems whatsoever on the Liberties in this regard, or any other for that matter. I have a Diamond Black Ice right now and have not had any problems either. In fact, I was checking for it after reading the Allegiance thread and found plenty of clearance on both sides of the bottom cam.

Rest assured you won't have this issue with either bow.