Is there a binding brand with mounting hole geometry the same as Connelly? If there is, is there a safety issue that warrants not mixing binding brands on the same ski?

I have a Connelly F1X w/ Vision front boot (size L) and rear toe. Want to upgrade to a rear boot, but unable to find a Vision. Connelly said for safety reasons not to mix boots, even within its own product set, but offered no explanation.

I'm inclined to disregard the Connelly line and proceed with a different brand for the rear boot that is similar to the Vision design (laces and no hinge), as long as the binding hole geometry is the same.

I would appreciate knowing the experience others have had with this situation and a brand with Connelly's hole geometry. Thank you. - Deerfield