We had to put a lot of weight in the nose also. I helped a friend build his Seagull Zero. We put a Thunder Tiger 46 in the nose. When we were finished we had to add 13 oz of lead to the motor mount to get her to balance at the mid-point of the suggested CG range. When we finally had her balanced, the all up weight without fuel was 6 3/4 lbs.

She flew well though and responded very nicely, but, here is the bad news, she had one takeoff and zero landings. My friend was doing a mild split-s when the nylon pin in the factory supplied clevis we used on the elevator sheared off and he lost all elevator control that resulted in a steep nose dive, tree slamming, hole digging contest that totally destroyed the plane.[:@]