ALL I ended up doing was using a file that produced the correct size. Made mods, printed, etched. Now going to GANG drill all 12 boards at once.
drilled some reference holes (3 per board) then etched. going to screw to a piece of wood then drill out all the holes.ALL 56 holes.
As a bonus, when I unwraped a pack of 1/2 oz boards I got from Pulsar about a year ago, It had 3 boards, not 2 as the package states. OH BOY more PCboards. Thank God they are single sided. Should work for 2x as well I think??