I'm going to try one of these on the rudder of a CAP I'm building, using a pull pull rudder. I think it will work OK, but have yet to install it. It appears to put the pull point right on the hinge line. I'll glue and screw it in place once I'm happy with the position.

[link]http://shop.dubro.com/products/productdetail/Semi-Scale+Tailwheel+System+%2840-90+Size+Aircraft%29/part_number=956/101.0.1.1.5161.5184.0.0.0?pp=12&[/link]

Ken

EDIT; Picture wasn't showing up so I posted the link.