Interesting results on your end. It might also be about how close to level you like the plane to balance. I like to see the nose come down about 2" from level. I tried a neautral cg where the nose stayed perfectly level and I didn't like the results when the plane stalled. Instead of nosing down a bit and starting to fly again the plane simply started dropping straight down like an elevator. The plane stayed level because of the lateral balance but lost altitude like crazy! Come to think of it my Super Decathlon did require some tail weight, forgot about that one!! Cheers!