Hi Terry,
I wish the Zimpro kits were still available. Nice size, quick to build and excellent flying characteristics. I've always liked the MK semi-scale aerobatic kits which were a little smaller than the Zimpro kits. Of course Dick Hanson's Dalotel flies great and I had one of his wood Zlinns which I really enjoyed. Sounds like you have a nice collection of the Zimpro kits - enjoy!!
-Will