RE: 35% Giles...
Guys I have been flying one for a while. I have the BME 102 in it. I balanced according to Tom's suggestion of 1/2 o 3/4 inch in front of the wing tube. At this point the plane floats in as gracefully as does my 35% WH extra. I fly at a field where landing North to South is very tight on final due to trees.
Eddie Bernaldez