The PFA have now issued permits to test an RV-6 and an RV-7a covering spin and aerobatic testing.
This will be performed by the same pilot who did the testing of the RV-8.
A combination of weather and availability has meant not much happening so far.
Successful completion of these tests, as I understandit, should form the basis for all other RV-6 and -7s to be put through the standard PFA aeros flight test and gain approval.
It's been a long time coming, but there does now seem to be light at the end of the tunnel.
Now, where's my rivet gun.....