Could someone with experience with the F2D airplanes lead me to where the balance point should be? I have a 1/2 A Gladiotor I bought from Brodak and it is really tail heavy. No mention in the instructions where to balance it and Brodak does not know either. With such a short nose I am afraid I may have to add a lot of weight to get it on or near the spar. I am used to the U.S. style foamy designs. The Euro stuff is new to me.