Just a follow-up. Today I updated my PC-350V's with the latest/new FW to resolve (Hopefully!) the issue noted in this thread.
Obviously its too early to tell how things will go, but initial tests seem good.
The one notable item was that when I updated the FW, the outlets DID NOT cycle, so that was a pleasant surprise!!! hopefully this is part of their design, as I HATE when PDUs cycle their outlets with updates...