Continuing to fiddle around getting the ailerons to move to the plans limits of 25 degrees up and 20 degrees down. Between the control arm at the base of the control stick to the aileron control tabs on each wing there are three linkages, an idler and a bellcrank as well as six rod end bearings (for a total of twelve). This doesn't include the fourth set of linkages to the upper ailerons also utilizing a pair of rod-end bearings each. Given all the aforementioned bespoke components, each of which are connected by a pair of adjustable rod ends, some differences can be expected between the left and right systems due to "building tolerances". So setting both sides to match one another's movements has been an iterative process. They're pretty close now, and probably good enough. To reach the full 25/20 degree throws shown on the plans, requires a full 30 degree throw of the control stick to each side to achieve same. I don't think that much control stick throw is going to be available once everything is connected up. The aft end of the control torque tube at the base of the stick connects to the elevator pushrod assembly via a rod-end bearing. There is a total of two such bearings until reaching the elevator idler. Each of those rod ends would need to allow 15 degrees of rotational travel to reach the above limits. I'm thinking these rod ends will bind up at less travel than that and so will have to check that out with further assembly. Wherever the travel limits are, I'll need to set the aileron stops in the cockpit accordingly so things don't get bent. Edit 4/19/24: Turns out the Aurora bearing co. publishes a 13.0 degree divergence angle for their bearings. In a perfect world that would give me a 26 degree control stick swing each direction prior to reaching a binding point on the elevator pushrods.