The K-Planes pull up a lot higher then Bennets. Mine are mounted about 1/2" above the transom edge and pull up to a higher angle then the running surface. They seem to pull off the water just past the neutral mark on my indicators which is around 5.
Guess I'm not the only one changing to 280's. Glad to hear everyone is having success with them. I'm hoping the 280's will actually allow me to use less tab since the contact point will be further back.