I've got a bit of a head scratcher here. I inadvertently left the tail spring mount installed while match drilling the skins. The second pic shows the forward flange of the mount with a gap at the top where it attaches to the F-712 bulkhead. I was able to slide a shim of 32 to 40 thousands to fill the gap. We'll see how it pans out once the keeper rivets are installed.
