Sparky,

I'd like to jump into the flap discussion because I feel that I have much to offer of value.  In my DVD book 2 pages 550 to 561 is all about flaps.  I'c like to copy and post the entire 8 pages.  Failing that, I could also start on 561 with Howard Rush's carbon torque tubes and a discussion of 1/8" flap horns. It would still end on 563.

Al