Well, I guessed at the angles and went flying. I did put -30% exponential on all surfaces.

First flight: Scarey--too twitchy even on low rates. Needed lots of trim, mostly down trim, but it doesn't look like it on the ground. I landed it somewhat fast.

I lowered my low rates and put my high rates where my lows were.

2nd flight: Gave up on trying to take off of the paved runway due to ground looping. No problems taking off from the grass. Loops were tight and rolls were quick but not extreme. Turns were very uncoordinated, but I was afraid to use the rudder since it is so strong. Tried the flapperon mixing at 50%--tighter loops, but not extreme. Dead sticked, too lean for cold weather. Landing was smooth, slow and uneventful.

Mixed in 20% rudder with the ailerons. Lowered my low rates a little more.

3rd flight: Much better turns. Plane flies just above idle. Inverted flight was difficult, plane looped with any down elevator. Knife edge power is very good. It would knife edge loop by accident. However, I don't know why it pulls toward me so much in knife edge. Landed very slowly, touching the tail down first.

Took out some of the down elevator travel, but have not tested it.

First impressions: This thing seems way overpowered. Maybe I just need to get used to it. Normally I like as much excess power as I can get. I need to figure out inverted flight--no or little down elevator? How little down elevator? Need to figure out knife edge coupling. It really pulls toward me. I kind of wish that I had put on a steerable tail wheel.