@cykVM
Thanks for the quick response! Like many others in this thread, I've been running 5.5 U 1 stable for a few months now (thanks for that!). Trying to avoid the jump to 6 if I can (5.5 preferred) but I'm at a point where I would like to start patching ESX.
I'm kind of new to ESX and didn't realize that driver roll back was an option. I have a spare DL360e with a B320i. I'm going to try the latest and greatest from HP (3/30 5.5 U2 release), test for -92 speed issues and pending any, use the 88 vib and the rollback instructions in the thread you linked too. Fingers crossed..