Guys help! whoever has a Partenavia, Balancing is a problem. did exactly per instructions, No modifications, plane came out tail heavy to about two full ounces. Main gear is not on backwards, battery is all the way back as it will go and plane will easily sit on tail [or balance precariously on main gear. cannot move battery forward or it will balance nose heavy. Alternative is to move main gear back one inch [by cutting out a portion of fuse just behind main gear then do another balance job. Advise please, thanks guys, MjS