Yes i was under the impression that i was using interrupts correctly by connecting the encoder to the interrupts.
Unfortunately full rotation can have human errors but it should be close. I placed a reference point on the wheel and one on the fence it glides on. And thats how i came up with full rotations.
In terms of index pin z i disregarded this pin and didnt connect it as the first encoder (signswise also linked above) i used only had x and y input and it had the same issue im encountering with this one. And using other forums i didnt see anyone that had a use or wrote a code for Z hence the reason for me diregarding it.