Hi, just to let you know, this is what I am doing. I built the servos in wing as per plans, but -- this is the news -- I am building another mounts in tail. The extra weight is very small.

If it balances ok with the Ys in front, I will place servos in wing as you advised. If it looks like I will need tail weight, I will cut out the tail mounts and move 1-2 servos in tail.

Time will tell what is best. This far the only real modification is omitting the pull-pull servo linkages. I have some nice carbon rods that I want to try out.