The replacement canopy blocks showed up so I went back to the hangar one final time before shutting it down for the summer. They installed fine. Then I riveted on the guide that goes into the slots. I didn't bother adding the blocks to the rollbar yet (Van's acknowledged that they should be drilled #27, btw). In some of these shots you can see a problem. The edge distance on the canopy skirt-to-attach angle i miniscule. This is only on the pilot side. I'm dumbfounded as to why this would be since there's really only one way for the skirts to fit, especially with the cardboard spacers in place. I clecoed on the canopy and then put screws/nuts in place along the rear bow. What I found is, despite the clecoes being staight as I drilled, the holes, while perpendicular to the plexi, are not PERFECTLY lined up with the hole in the canopy frame. And how could they be since the method of drilling is to eyeball the underlying frame hole. This as a little easier to cover on the RV-7A since we were dealing with flush screws; not so on the RV-12. I remain concerned about the canopy edge slightly resting against the frame near the forward corner cutouts. Van's tech support didn't seem particularly concerned in this location, but I am.