I just picked up an Acell Pitts S2C 40 Bipe and the instructions say to start with the CG at the lead edge of the lower wing. I'm a newb to Bipes and not clear on how to measure CG on it. Do I check in the upright position and start with the lead edge and move it back as I learn the characteristics, or do I balance it upside down on the top wing and target the lead edge of the lower? I usualy balance planes at the recommended CG and not had any problems or surprises. I would also add that my experience is limited and not doing any 3D at all (Hope to learn soon)!
Thanks for any help,
Peter