Glad I'm not the only one to notice the coupling issue.

I FINALLY got to fly my twist yesterday. Put 5 flights on it. It is set up with an abused OS 50sx turning an APX 11x7. These were the engines first flights after getting planted a foot deep in mud last year during the demise of my Somthin' Extra. The engine wasn't quite putting out the power it used to, but some adjusting will get it close, I just didn't feel like doing that yesterday because I wanted to FLY!

ANYWAY...the balance was set to the middle of the recommended range (4 1/2"). In my opinion, this is WAY nose heavy. It flew straight and level with no trim needed. Inverted flight required holding some elevator to maintain level. Applying rudder, in either direction, resulted in a severe nose pitching toward the gear.

I tried to get the thing into a flat spin, but it just wouldn't do it, on either low or high rates. In fact, this part of why I think it very nose heavy with the balance in the middle of the range...since the spins were basically almost straight down nose attitude.

I will move the balance back and see what happens.

I think it will likely hover nicely, but I had some trouble last night due to engine power (remember the mud?) and the coupling issue. It did, however, harrier nicely!

I think it will make a nice funfly plane, but so far I think I like the Sig SE better...time will tell.