Hard lesson learned I guess.
I've found racers very rarely sell good motors. It's usually the ones who are getting out of the hobby for good that you may get a decent motor off. Racers however keep the good and junk the bad. I've been through the same turmoil with V-specs. It was my fault that the con rod broke, but after spending heaps of dollars on that motor, it would of ended up being cheaper for me to just buy a new one in the end.