Just finished building a Tower Uproar 60. Had to add 98 grams of lead to the tail to get the balance of the plane to the center of the recomended location (5 inch from the leading edge). The battery and receiver are mounted as far aft in the cockpit area as possible. The engine used is O.S. 91FX with stock muffler, mounted as far aft as possible. No weight-impacting modifications were made to the kit during construction. Since I'm relatively new to building, I have a couple of questions.

1. Is adding this much lead typical for a plane this size?

2. Is this typical for the Uproar 60?

3. Is 5 inch from the leading edge a good starting balance point for this plane? Using less tail lead makes it nose heavy, and since I really want to ring this thing out 3D style, I think it should be a little tail heavy in the long run.

Any hints would be appreciated.