Ok, to whom it applies (not many at all) I have checked out the spinner for these "rivets" that SKYPILOT was wondering about. They were built into the spinner to eliminate the painstaking process of finding the right spinner adapter to fit the engine. GP has no way of knowing what engine you will use, so they did it this way which is good, I can't begin to tell you how many times I have been back and forth the store looking for the right spinner adapter!!!!! What a pain!!!!
This takes care of that
good job GP!!!!!!!!!!!