I'm sure there are many different approaches. To me it makes sense to consider cg, wing angles and thrust angle. I am going to try Hebert's method as it makes sense to me and has worked well for many others.
I tried moving my CG back, it had no effect on elevator trim and only resulted in the planea little more touchy. I will find the 25% mac and see how close i am, I bet I'm pretty close. So then some wing adjustment or thrust adjustments to clean up the stab, recheck performance, etc. My hunch is a 10th of a degree more positive in the wing will get me there but we will see.
I just had a good flight with some positive comments from the judgesbut I. I think the airplane is really close.