PLEASE!!!!!!!!!!! DECALAGE HAS NOTHING TO DO WITH C.G. ,,,C.G --------IS GEOMETRIC..WING,, OR ENTIRE AIRCRAFT.. POOR DESIGNS WILL REQUIRE TRIM OR SOME OTHER "TRICK" TO GET GOOD FLIGHT ...IF YOU "BALANCE" TO GET LEVEL FLIGHT AT A GIVEN AIR SPEED,WHAT HAPPENS WHEN THAT SPEED CHANGES?? SYM. AIRFOIL, SYM. STAB. ZERO EVERYTHING,,BEST ALL AROUND SET UP..FLYS ALL ATTITUDES.. GROOVES.