I have a spare SRAM x7 mid direct mount which I was hoping to use for a hardtail frame specced for a High direct mount. Seeing from online images I'm not even sure that the interface is the same.

Does anyone know if they're intechangeable to some extent?

From what I've gathered I understaand that they share the same interface and the only difference is that a mid direct mount would allow for greater chainring size than a high direct mount? (and a low direct mount would allow for even greater chainginr size according to this logic?). Is this the only difference or are there other factors to consider?

Thanks a bunch!