Had the angles all worked out for making the rear canopy pin fit nicely into the right rear practice block--made of maple. Then I setup the rig for drilling the UHMW plastic block and figured that I'd be in there. Oops--not so fast. I didn't drill and bolt the mount for the block before I got the angles all figured out. I relied on the clecos to hold it in place and it just wasn't the same. Now I'll either have to make a slight adjustment or get a new block. Ugh.