Did all the adjustments on the left and right horiz stab braces to place the stab perpendicular to the vertical stab. Had to be one of the easiest things I have done on the build Measured from the top of the vertical to both tips of the stab as well as to where the brace mount was located on the stab. All the measurements were right on. Proceeded to mount the trim motor and ran into a bit of a wicket with the lower mount. The instructions call for the bolt to go through the mount, then a AN960-10 washer (going to call it a -10 washer from now on), a nylon washer, through the trim motor mount, a nylon washer, a -10 washer, through the other side of the mount, a -10 washer and the self locking nut (nothing between the collar and the mount). There was no way in God's green earth that was going to work and even look right. I even bent the mounts out a bit and those washers between the mount and the motor would not fit (and besides bending the mount just looked wrong!!). After playing with that for over an hour, I substituted the -10 washers for the thin version of the same washer (an AN960-10L that I will call -10L). So in the picture you can see that the mounts are not bent, the bolt goes through the mount, a -10L washer, a nylon washer, through the trim motor mount, a nylon washer, a -10L washer, through the other side of the mount, a -10 washer between the mount and the collar, through the collar, a -10L washer and the self locking nut. I torqued the nut to the 15 in/lb requirement and just have two thread showing through the top of the nut. Hence the -10L washer between the nut and collar. So now that the trim motor is installed, I removed the horiz stab and am looks like the next item on the fun list are the ribs for the rudder.