I had put the blue reference line tape over the top flange of the forward fuselage and then realized I needed to reinstall the top skin to firm everything up. As long as I was doing that, I put some black adhesive where the previous adhesive stuck too much to the top skin when making the waterproof seal in an earlier step. Results were mixed when I took it off today; it hadn't cured thoroughly and was sticking too much to the top skin.
Anyway, I reinstalled the top skin and put the tape on.
Then I made the spacer blocks that go against the flange of the back spinner plate.
The instructions are a little misleading and SEEM to suggest that you want 1/2" plywood or equivalent to make the the spacer. You don't. You want 3/4" plywood.
That creates a somewhat less than 3/8" gap between the spinner plate and the cowling (because 3/4" plywood is actually somewhat less than 3/4"). So I put a strip or two of monster tape on the spinner and then the spacer comes out closer to 3/8" from the spinner web as instructed.
I stopped, however, because I need some two-sided tape to hold the spacers in place.
BTW, I got the new sockets for the broken wire in the HICB connector, but I had to order new butt splices to crimp them together. Soldering is no good.