Really don't feel very good today. The kids both have colds, and today I started getting the same crud. Because of that, I only spent a couple of hours in the shop. Reamed the clevis holes for the flap actuator tube. The plans say to drill these to 1/4" but Thats usually kind of sloppy for a -4 bolt, so I reamed them to .2495 and that's plenty big. Cut the center bearing block to size and drilled the mounting holes per plan. Note, this delrin block was about 3/8" too long as shipped and the bolt holes are laid out referencing a dimension from each end. If you layout the bolt holes before you trim this to the right size, one of them will be in the wrong place. You can see in the picture below how much I had to trim off of the long end. Drilled the safety wire hole in the end of the actuator. Somebody discovered that if the jamb nut comes loose on the helm joint, there is the potential for it to unscrew itself and come apart completely. The service letter fix is to drill a hole at an angle through the end of the actuator rod end cap and safety wire it as a sort of belt and suspenders approach. The smallest drill bit I has on hand was a #50, which is pretty big for safety wire, so I ran down to the yard store and picked up a couple of #60, which will handle .032 safety wire easily.