Finished riveting doublers onto the spar. Also recieved some 470-5 and 6 rivets and completed riveting a botched wing rib to spar rivet. Here's the story. Back when I was riveting he spar on, I was squeezing those rivets. The set slipped off factory head and split the head right down the middle. This made it really difficult to dill out and in the process I really enlarged the hole, so much so that I couldn't use a 4. Problem is I didn't have larger diameter rivets. So I had to order some lager rivets to I ordered a variety of 5 and 6's in case this happens again.