Wow... that's sad. It was a total disregard in quality workmanship, & you should have been able to TRUST the "builder" to do what he does... people make mistakes, but it is how you fix them that makes a difference. It makes me want to assemble every motor after all the machining is done & all components are ready... just to be damn sure it is treated with all the respect a race motor will need to be assembled. The trouble is, I have never offically assembled one myself!! I want to learn badly though.