Hey Miguel!
The Hydra32 settings were proportionally scaled down from our original BRS Recommended spectrum ratio to 80% and 60%, which is why the reds and greens move to 8% and 6% respectively. I wouldn't get too wrapped up in these channels. When the manufacturers don't have a template or recommended spectrum ratio that we would use, we basically crank up the blues/UV/violet channels; add in some white to balance out the look of the tank; then tweak little bits of the reds/greens to create some contrast and color accents in some corals.
Without testing for sure with a PAR meter, I'd say that you are on the right path to optimizing your lights for your tank. Best practice of course would be to test so you know for sure. It is very possible that your SPS may have had too much light at those lower mounting heights, but again it's tough to throw guesses at the wall without testing to know for sure.