Maybe we can stop claiming we all know everything about COG, since the damn thing changes all the time. If we all knew everything about it, we may be standing and walking. If you want to argue, argue with Tilite.
http://www.tilite.com/assets/pdf/RIGID_OM_TR_YR.pdf

Emjoy! This is printed in your owners manual. I would be willing to bet everything I own, NOBODY has ever read it, including me.