Castle Creations policy?

I just got my 2 replacements bec's.When they failed they took about 200 in servos with them. I got no reimbursment,but they did replace my mm for free even though I was running it on 4s when it went. I found some good deals on ebay for my replacement servo's and am really up in the air about whether or not to run the new bec. I mean a 30$ servo is nothing to lose sleep over , but if it failed again and left my vehicle servo less I could end up getting upset. They also told me to run 1 with the MMM that I got replaced also,so that really leaves me wondering, I mean what are the chances that they will both go out again and leave me monster truckless? Probably to high these days.