Flew it again today after some mods I have made.

Even though I had mixed results I did have a lot of fun with it and really enjoyed myself.

I put the other stab on which has a slightly higher area but also moved it back 3 in so the moment arm is closer to the SSE. I also raised the stab by 3\8 in to help stop the pitch to the canopy in knife edge. But the most significant change was moving the cg back, and I didn't mess about I went straight in with 5in back from leading edge. I also moved the engine up so now the crank is 1 1\2 in above the wing center line.

I trimmed the elevator out to fly level at about two thirds throttle then brought it back in to see if the elevator was still flat, and it was, more or less. It does not need excessive up to fly level at lower speeds now but still requires a fair bit of down when inverted especially when flying slow and I nearly run out of elevator when diving inverted with the power off. I' ll have to check to see if I have the same down travel as I do up.

I made the elevator travel lower as suggested and increased the expo. I think it flies as good, if not better than the SSE but I also feel I have made it more stable which is not what I intended to do. It is very similar to the SSE in the air. I tried to build a plane that would do what the SSE would not do well, Like Knife edge and prop hang easier. Well it does both of those but I feel I could improve it still further.

In knife edge it now pitches to the wheels instead of the canopy, I don't think the 3\8 in raise in the stab has done this alone, it is probably a combination of increasing the moment arm and raising the engine. (what do you think)

I raised the engine because I thought it would help having more of the prop wash over the top of the wing to improve the slow fly. It lands like a heli every time.... very pleased with that aspect.

It still has this roll to inverted when holding in lots of rudder for knife edge, so the next flight I cut off the counter balance and stuck it to the top of the fin and it improved this problem a great deal and now only seems to roll when I use all of the rudder travel. Does anyone know what I did here?, if I could find the theory I may be able to eliminate it all together.

It is not really twitchy at the back end so I thought about moving the cg back still further or am I asking for trouble.

Please feel free to chime in here, all comments greatly appreciated. Thanks for all the suggestions so far they have proved very helpful.