need a little help plz... been fly'n the giles and on inverted flight she like to nose down so i move the battery pack back further in the fuse balanced it and i say its prolly 5" mabe 5 1/4" back from the lead edge @ the fuse cant find my instruction book from the build. whats the book say, and has anybody flown it back further than 5 1/4" thanx tim