Darran ... the Extra 300 is the best of all the BH acrobatic planes, best as in RELATIVE! My friend got one and it sucks with a .46 engine, sucks as in there is not enough power to pull out of anything more that simple loops etc. Its not under powered but you do not have much in reserve at all. The planes are not built with consistency, some are heavy and some are lighter. The one my friend got was tail heavy and he had to add 14 oz to the nose. The plane crashed after a few flights, did not have enough power or altitude to pull out of a loop. You sure it flies like a bullet? Hehehe ...

I believe a lot of people have stated that the BH CG point is inaccurate, try moving it a little forward and see what happens. By the way what is the dry weight of your plane? Tanks.