drooping ailerons

I'm building experimental. After reading some stuff on the "topcub" by Jerry Burr, I'm seriously considering a "mixer" for drooping the ailerons. I have a design idea which would alow for adjusting the drooping effect, but not from the cabin. Would have to change location of a bellcrank while on the ground. If someone would share a concept for an inflight adjustable control system I'd appriciate it. Give me a person message.

Don

A bellcrank on bellcranck concept that would allow the pivot point of the aileron bellcrank to be moved. Haven't thought it through, so don't know if it is practical. Jerry's present system looks just about ideal to me.