Herb has been busy, and gone, so I know he hasn't seen any progress. However, there has been some. I have been working with his A&P/IA, and we actually have gotten a few things finished. The new winglets are on. These really are huge, but very light. They are made out of carbon fiber. There is a lot of matching holes, to make sure they line up, but they are now on.
As part of the upgrade, Herb got new LED position lights, and brighter strobes. Or maybe his old ones were just weak
In any event, the position lights use clear lenses, and rely on the LED to give the correct coloring.
We also got the boom fairings on. These are also carbon fiber, and huge. There is quit a bit of work involved with getting these in exactly the correct position. Then fastened. We observed that in some places the boom fairing edges would lay up against a rivet. Herb talked to Owen Bell, and he gave advice on how to remedy that. The end result is very clean.
With the comments on the Skymaster that went down in the Artic, Herb got cold weather inlet restrictors, and these are mounted. As well as insulating the crankcase ventilation line.
One of the pieces that connects the stut to the wing (strut fairing) was cracked, and generally in poor shape, so that has been replaced. Getting the old one off was easy. Getting the new one on, was very difficult.
We still have to mount the window in the door, and a couple other things, but we are close.