Just got a long E from Bill H about the thrust problems. He said on his next one he would lower the turbine 1 -2". The swiss have a 50% BD-5 also. There picture show the turbine way down as compared to the normal rail position on this one. Think I will make 2 wedges to bring the front of the turbine down about 1 1/2". Painted the front inside of the fus white, looks a lot better. I'm putting all the air tanks & valves & bat. way up front. Bill said he added 2 1/2 # of lead up front on his to get the CG right.