Putting everything back together with plenty of Tef-Gel and 3m Scotchrap 50 tape under the flat parts.
Haven't heard of the Scotchrap idea. Just putting another barrier between the metals? Where'd you get the Scotchrap?
Also, I need to tap some 1/4" threads into the mast. Can go 1/4-20 or 1/4-28. The finer thread might be better for holding power but I wonder of aluminum is too soft a metal for the fine threads--or maybe I'd be more likely to screw up the tapping job with the 1/4-28. Any recommendations?