RE: Trying to understand incidence
Raptor, that's fine for YOUR style of flying but legions of students have trained on models with what you would consider, by the sounds of what you type, to be "bad" design. And yet those models are accepted in the modelling community as being very successful designs. It's not that either way is wrong. It's just that different models are designed for different flight tasks. You've obviously moved beyond the need for any built in stability and prefer to trim in the minimum required as needed and that's fine. Many, including me, would agree with this method *FOR SOME TYPES OF MODELS*. However not everyone is at that point or perhaps there are reasons for certain models in your stable to use a different force setup. I fly models that are close to neutrally stable and I also like to fly Old Timer free flights with RC in them. The aerobatic models I try to trim to the edge like you. The Old timers wouldn't be as nice to trim and just watch them fly around if I did the same thing.
Basically I'm trying to point out that not everyone flies as you do. What's good for you and others of similar skill level isn't neccesarily good for everyone.