Best mh reflector over a 20x20x20 tank?

[lastlight]

I'm considering upgrading to a single 250w bulb over my Solana. It will be a Radium on a Blue Wave 3. I had previously thought the Lumenmax Elite was the reflector for me but a few people have suggested the Lumen bright raised up higher.

I think the Elite has a wider spread. Would be mounted lower.

Lumen bright mini is 15x15x10 and is more focused from what I hear so could be higher up. My overglow chamber takes up 4-5 inches so I don't think I need the fullsize Lumen bright. This might help with heat.

Suggestions?