Don Wang hooked me up pretty good too. I detroyed the Hughes converter he recommended, but he took it back and went through my whole tranny for free and got me another, although I wasn't thrilled. Then after a few weeks or so he called up to see if I wanted to keep the new Hughes, upgrade to a 10/12 converter or get a refund. I took the refund and got a Pat's. I've been daily driving on Don's tranny for almost 2 years now and I have no issues. I've heard a lot of good and bad about him, but he proved himself to be a good guy. I believe my warranty was unconditional as well.
I was under the impression that Art himself was still doing the transmissions. If time is an issue, deal with it. I was riding the bus and trolley for a few weeks waiting for my Pat's unit to come in, it was worth it. If you keep driving it it will only get worse.