Countersunk the forward attach holes on top of Canopy to the WD-819A canopy frame Unclecoed the canopy skirts for glassing. Drilled out the temporary blind rivets from canopy Removed canopy from frame and drilled out attach holes for WD-644 rollers to WD-819 sliding frame. While I had the canopy off, I trimmed a small amount of material off of 640H Anchor pin because of some dragging issues. Also worked on the canopy rail stops on both right and left sides