"in any case you're NOT recommending I switch to all T-5 or removing the HPS in favor of the 6700K CFL's, right?

that would have been a quick fix.

damn the luck."

Um, no, but I wouldn't rule it out.

If I was recommending lights for low heat, it would be LEDs.
No contest!

Even a brand new door is cheaper than LEDs.

And like the Ranger said, light baffles are easy.

Food for thought.

Aloha,
Weeze