I try to avoid common sense whenever possible! [ ]In terms of the (scale) rudder bar, I don't see any reason why it would be any more sensible to use a longer linkage to connect to a non-scale bellcrank further behind the CoG. The rudder bar IS just a more elaborate bellcrank. Ditto on using the control stick as an (rather more decorative) vertical bellcrank. Would it be any different if I were to install a traditional model bellcrank in that location (such as the one on my Snipe)? I don't really see any advantage in that.

But I really don't see any way to include scale rotation of the aileron lever bar without disconnecting this from the elevator "bellcrank" movement. That is I could have a mock bar the does in fact rotate (for example driven by an arm to a servo on the side) as long as it didn't pass really through the elevator control stick. But then the stick wouldn't move either.

I hadn't really planned to have scale aileron control, for a host of practical reasons, but I'm very curious whether 2-axis servo control is possible.