I inserted permanent caps in the center of the sockets to prevent any rust inhibitor from leaking to the bonding surface, (will be using Redux / Flox), and to prevent too much Redux / Flox from entering the center of the socket.
You can just make out the witness mark from a fine round file that indicates starboard and top. The Port socket got two marks, and the four plates were marked similar.
BTW, everything was scuff sanded with 80 grit and cleaned with MEK.
Y10-11-21