I installed the control stick this evening. I spent about an hour on one bolt and sacrificed a wrench to it. I now have a very thin wall 3/8" wrench. The Bearhawk website warns you to be careful not to mount the control assembly too far aft or the aft bolt will be difficult to access. I didn't think I had it that far back but it was. Either way that's where it needed to be for the correct alignment with the pulley. It's done right now and all bolts are tight. I used 1/8" nylon rope tied to the assembly and ran it through the pulley to simulate the cable for correct alignment.
1/8" nylon rope to check alignment with the pulley