I'm putting together my first bi plane (a .25 size ARF). It's very nicely constructed, but the directions are minimal. It says the CG is 81mm from the leading edge at the center of the upper wing. Should I straight edge across the wing to find the spot at the wing tips to hold to see if it's balanced? I've tried it and the location turns out to be about 1 1/2 inches from the leading edge at the tips since the wings are swept back some. My other planes all have straight wings, so this has never been an issue.

Also, does it matter where you put the connecting rods for the upper and lower wing airlerons? Should they be centered on the airlerons? Put behind the wing supports? (which in this case are about 2/3's of the way out from the fuselage). The airlerons run all the way out to the wing tips, and have just one servo in the lower wing.

Thanks in advance for any help.

Brian

Ps. I'm assuming I've been balancing my planes correctly, by having a friend and I put our finger under the "CG" at the wing tips and holding the plane up, and adding weight where necessary to have it slightly nose down. If I'm wrong, please let me know.....