I am balancing my UCD today.....sorta.

It looks like I need 4-5 oz of lead, but I am having a bit of trouble. The GC must be somewhere inside the wing core, (vertically), because whether I place it upright or upside-down, the plane will tip in either direction once it is more than an inch over the top. How do I tell if it is balanced? I am using a GP CG machine. (I really hope there is a better way).

I'm off to Wal-Mart to buy lead. I ain't paying $12 for 6 oz of lead. (not bitter, just cheap).

Thanks,

Mark