Thanks, Red_Jeepster, I did read your posts, but did wonder if anyone had any success with moving the dihedral. On other RCU forums for the Hog, they state that about half of the dihedral gave them a better flying plane. I just wondered if anyone on this forum had the same experience as I am at the point of setting the W1 rib angle. I don't do 3D and just want a very acrobatic plane, i.e., loops, spins, knife edge,inverted, etc., the ususal stuff. Just gathering information as I have been flying RC for over 30 yrs. I presently fly the KOAS and really enjoy these type of older acrobatic models. I also intend to make mine a taildragger and contacted Sig for the kit whicn is $6.99 with a reduced shipping charge of $4.99.