I just wrapped up my Somthin Extra build tonight. When I checked the CG, it's a little tail heavy. The plans show the CG on the main spar. Mine is 5/16" or so behind this. Anybody fly the SE with the CG moved back? If so, how was it? I'm debating whether I want try and shift the battery or add weight to bring the CG forward. My old SE ARF had the CG right where the directions called for and it flew like it was on rails.