Update:
The weather finally stabilized enough for more flight testing this past Sunday. I installed an .098" venturi instead of .093" and a slightly lower pitched prop to get another 600-800 rpm and the difference in performance was very good! The climbout was definitely better and the touch & goes were easier, even though the wind was down to 1-3 mph. It flies better every time now, it's learning more and more each time!
I made a tentative try to do a loop but when I pulled up briskly, it yawed off to one side and caught me off guard....it ended up looking like a hammerhead with a recovery 90 degrees off. I guess that was due to the torque reaction to the sudden change in rotor speed. I'll have to try again and be ready with a rudder correction. I had planned to try an ROG but thought better of it, considering the wind. Anyway, all in all, I'm pleased as punch with my new toy!