.. I was hoping someone had blueprints for an adaptor between the On-Demand Cam and the Ninja mount. The camera area where the screw holes are is too small to fit the span on the Ninja mount, so creating new holes on Ninja mount looks to be the only way. Then there is always Duct tape!
I wasn't aware that the On-Demand (AKA wired Night Vision Cam) Camera didn't fit the Ninja. You should only need ONE new hole as certainly... one hole should line up. If you drill a hole just slightly smaller than the screw... it should work fine. If you want to be
extra sure.. try a drop or dab of glue or caulk on the inside part of the cup shaped mount. That should provide more holding strength for that one screw.