[Rich]

My understanding is that the trem post spacing is different on this bridge unit compared to most ‘standard’ flora rose type terms and as such you may be limited to replacing with same type of bridge.

That's the Edge Zero/ZR family.

 

[Rich]

All Edge variants are 73mm, 1mm is nothing on stud spacing.

The EP has rounded corner on either side of the studs, ED/LE do not. A Lo Pro won't even get to the studs on most guitars. Square those corners and they fit.