The original risers were 15mm high & I preferred a little more. I also needed a bit more clearance on the bolt & nut cavities - as these fitted quite tight in the original model (at least, in my print).
I did quite like the original design, though, so I used the same when I re-did these in Fusion 360.
STEP model files are also included - for those who'd like to tinker around a bit more. :-)
Printed on the Opiliones, as the Vertex was still busy... :-)