I don't think so but he responds to inquiries on his site no sweat, or on the phone.

I flew with him when he had that F-4 going maybe a year ago. After seeing some local guys have problems with the DF version I did not expect much ....WOW was I wrong, Tam flew that F-4 with P-20 beautifully. It was all in the set up (CG and throws) and then just trusting it to slow down. It was fantastic.