Sorry lol didn't mean to hijack your thread!
A little surprising to me you're getting those par numbers for hydra 32's.
You can also drop them down a few inches. T5 Hybrid system is definitely a good idea.
But that's like saying should I replace my stock suspension, of course you're gonna get better results but it comes with money. No reason 4 Hydra's can't handle it IMO.
Mount them Sideways, and also drop them a bit. I think it'll help your spread.
Also BRS did a video on it, even spacing isn't neccesarily your best option, since the edges of your tank are empty, you want to maximize the light you have, crossing cones of light in the best way possible.
This is how I have 2 Hydra's right now over my 2ft wide tank.
It's overkill for sure. But look how they're mounted.
Also try to buy some diffusers. It'll give you better spread.
This is all saying of course if you're not LOOKING to spend money. IF you want to drop $$ on T5's you'll have more even spread and gurantee'd better lighting.
How tall is your tank?