Replying to Remounting question

I have some old ar5s that are currently mounted with some axial race 140s (old p-series heel), but I was thinking of moving those bindings over to some new skis (bluehouse hopefully), and putting some other bindings on the ar5s. Heres my question: if i was to get some px12s for my ar5s, would the holes line up with those of the old bindings, or would i have to plug them and re-drill? I'd rather not re-drill obviously, but i'd like to have my nice burly bindings on the skis i'd actually be primarily riding. thanks