Completed drilling in top skins into the center top and firewall. Put in the spacer strips and drilled upt thru the firewall into the outside skins with a 3/32".
Filed the edges of the top skins so they are a now even around the curve. Put in and drilled to top cowl mounting strip and drilled out to !/8". Filed one side down to even, needed a fair amount on the bottom and none at the top. Ran out of time.