Marked both rear spar centerlines near the compression ribs. Cut 1/4" off the two -14 blocks near the I-strut IAW instructions to account for the doubler's depth there. Used the bandsaw. Marked outlines of the -14 blocks for glue application. Cut the -36 tri-stock into appropriate lengths to glue simultaneously with the -14's. Glued and stapled all the rear spar blocks.