So i tested the inner 75, I find that it is a very good blade. My weight is 89 and feels good, the handle feels very good and easy to twist and flick.
I compared this blade to the Yasaka Atletico Power. In theory they should be similar, with the main different being the Koto surface vs Limba. I fit them both with Victas Triple Double on fh and Rhyzen ZGR on bh.
On the FH, I dont find too much difference actually. They both have a good speed. The 75 inner has a higher pitch sound. They both have a some fair dwell time. I think the surface layer isnt affecting the dwell time as much as i thought it would. The overall blade stiffness plays a bigger part. I actually think the 75 inner may have more catchiness.
On the BH, i feel the 75 inner is clearly superior. So much so, that maybe the rubber boosting was not the same and thats what caused difference. But i found the 75 had a faster, snappier feeling. The ball launched longer and higher than the atletico. I felt more confident to loop attack with the 75 inner. Blocks felt stable and responsive.