Who should I buy a 727 or 904 from?

Well I can't comment on owning a complete transmission from John but I have bought several parts from his company. His parts are top notch and he has outstanding customer service.

My good friend who built my 727 spent over an hour talking to John about the parts, best set up, bsing, etc on John's dime. Andy was impressed with the quality of the parts and John's knowledge of mopar transmissions.