Yeah man, I'd say your pretty safe and don't worry about it. If you weighed another hundred pounds and they were tele bindings, then maybe I'd be concerned. But if I was in your shoes (I'm 160 lbs,...

Andeh, it wasn't clear to me above: are the old holes currently inserted, or just (filled) holes? If the former (and if your desired mount overlaps), pull inserts, fill with machineable epoxy,...