RCV have outstanding customer service; any queries I've had, and there have only been a couple, have been dealt with promptly.

Contrast that with Tru Turn. I can't get a response from them no matter what I ask or how many emails I send. Somebody there thinks the keyboard is a rattle snake.

I guess the people at RCV know they have to break into a tough, established market, and one tool they have is good customer service. I like their engines.