I moved the battery back about another 1/2". Then gave it one or two clicks more up trim. It's pretty hands-off in level flight now, at least as hands-off as a 41" plane can be in a little bit of puffy wind.
My initial impression is I'm flying a little better.
The only two inverted moves I'm working on are 2-point roll and immelman without rolls. On the two-point, I just give it a tad more down elevator on the inverted portion and everything else I'm working seems to be a bit easier. I still really really suck at the double Immelman without rolls. I know what it's supposed to be, the straight portion is suppose to be a square the same size at the 1/2 loops. But, I haven't gotten the straight portions at all level yet. But that problem is me, not the plane.
So I'm going to fly it with the trim I have now for a few more sessions. Then evaluate what the next adjustment, if any, should be.
-Ken aka l2t