Dave
Thanks for the input. During the process of trying to get a "solid" feel in the Contra setup I got stuck with not being able to get what I wanted in response to making C/G changes. I called and talked to Bryan Hebert and he suggested I set up a 28% MAC C/G and start playing with the wing incidences and adjusting stabs to take out any elevator trim. Bingo! Within two adjustments I was able to get the "solid" feeling I was looking for. I was really surprised how this worked. I had been working with MAC from 33% to as little as 17% and never found that locked in feeling!
I have been able to get the speed close by changing props and gear ratio's but I really would like to experiment with a low drag fuse from the vertical fin forward. The other thing I would like to experiment with is remove the main gear[Lot's of Drag a head of C/G] and install a set of light weight retracts!! How about a set of very light Genesis wings with retracts. May not work due to loss of needed down-line drag! I do believe a Contr Drive specific aircraft is going to change the current thinking in pattern aircraft design.
Dick