Riveted in 904 Ribs to skin. Had to drill out one of the nose rib rivets on the top side, that on the plans say to leave out for fairing attachment points. Didn't put in the other 4 rivets on the main rib. Squeezed the perimeter rivets, bucked the rest. Getting better at bucking, so that I even bucked one row of exterior rivets that I could have used the squeezer on, just for fun. Squeezing rivets is cool too, but hammering them into submission is great.