Thanks fellas for all the discussion. I'm currently sitting at the drafting board thinking through a 2M design excercise, and have been wondering if I should include either of these in my drawings. I must say I think they both "look cute"-to paraphrase my daughter. I've always liked the tails on the old F4 Phantoms, and of course the Curare. While I understand what each is designed to do to an airplane's flight performance, it's hard to guess how much of an affect either will have before being flown with some "base case" without these alterations, and I'm not sure I'm up for building three or four airplanes as a design verification effort.

MTK, I take your comments about CG latitude to mean you've experienced a reduction in the acceptable latitude due to the anhedriel stabs, ie. needing the CG farther forward? That's very interesting, and wonder if that comment is similar to the few comments about "locking on" which is often related to CG location.

Larry