Source: 1999 Beartracks, Bob Barrows

Reference plans number 395 and below, Drawings #9 and #10. The 3/32″ stainless steel pull rivets holding the nose skins to the nose ribs have been changed to 1/8″ aluminum pull rivets. The cost and availability of 3/32″ S.S. rivets has become a problem. If you have already assembled the ailerons and flaps with the S.S. you can leave them in, they do a good job.