I wasn't going to post but people deserve to know what others are dealing with...
I got my new replacement ESC today. What's nice is that my RMA (from the beginning of Jan.) was originally on a Reventon S that was faulty. I assume due to my frustration over poor communication they sent me a Reventon R. What's NOT nice is that I was told in PM that I was being upgraded to a Reventon Pro. So although I can appreciate the upgrade, it's still another example of how SP is dropping the ball on customer service. Sorry SP guys, but the truth is the truth.