Reading about Polaroid 405 holders and looking at mine, it was a shock to discover they're not centered on any 4x5 camera. Is the Fuji PA 145 better in that regard? I want to use Polaroids with my Technika's rangefinder and type 2 Universal Viewfinder with a 3 1/4 x 4 1/4 mask, which means the back must be centered. Custom machining is also an option, but one I would like to avoid.