When I got my A&P test approval last year I listed my RV builds in my experience along with plenty of certified aircraft experience. The inspector said he could not count that but it didn't matter in my case because of the rest. Interestingly, he commented that maintenance of an EAB after the AWC could be counted since it was then a certificated aircraft. Don't know how "official" that view is but it's worth discussing with your inspector.
1950 Navion - flying
RV-6 - first flight 5/6/2021
1940 Rearwin Cloudster project next
4 L-2 projects on deck