I am having a problem with the T-712 tank spacers. On my first tank I followed the directions and drilled them to the spar. When it came time to rivet them to the rear tank baffle I found that I had to grind off half of my rivet puller and still had a very difficult time of getting the rivets secured. If I use the centerline method then the rivets are too close to the angle and if I center the rivets then the nutplates are too close to the angle. Has anyone had the same situation and if so what to do?