Here's my final report on OWC/Macsales fiasco with their Accelsior 4M2. I paid $245US, they refunded $220US, so on the face of it there isn't too great a loss on this OWC hardware, maybe $25US.
This overlooks the $750US they cost me by killing three HP EX950 2TB SSDs. So it may have been much more expensive.
I have submitted the SSDs to HP for their decision as to whether to warranty them or not. Still in the drum roll on that.
Lesson: At least $25 penalty, maybe $775, we'll find out sometime. Some education can be relatively expensive
Conclusion: No more OWC/Macsales purchases for me.
This is the second major hardware failure from OWC, loss totaling at least $154 (and maybe a lot more) plus much wasted time and stress, as their "support" appears to be some really expert "ghosters" from probably India. It took over 50 emails to get this one up to the partial refund stage.
Double sigh...
Tom