As I recall, Bill used to call him old faithfull, or something similar.
The first four khuks I bought were made by him. I still have three--15" AK, 18" chit, and 18" Gelbu. They all have the "feel", as well as close to a convex edge. Perhaps not as refined as the two khuks that I have by Bura (Especially K&C) but they are not the first ones I'd part with.
What about the fourth by Kesar? That was a "YCS" that didn't meet specs, and had a soft edge, produced at one of the "bad times".It had the feel, but didn't hold up. I often wish that I hadn't returned it, and upscaled to a GRS produced by another Kami produced at the the same time, and instead had sent Kesar YCS to Art, who had just showed up. The GRS paid Art a couple of visits. On the other hand, sometimes I'm glad I made the trade, otherwise I might not know what a GRS is.
The guy cranked out a bunch of khuks, and as long as they were traditional models that he understood, I don't think that you can go wrong. He got a bit of an unfair bad rap at the time, for trying to make some thinner blades like the YCS, and it's not even clear that it was his idea.
Any of them can have an off day, and the blem 20" siru I have by Bura shows that. On the other hand the UBS I have by Bura is a true gem, though it is very thin at the edge, and not convex. Bura does seem to be able to make a thin edge work when the other Kamis have difficulty with them.
On an AK, I don't think that you can go wrong with something made Kesar, unless it was made when the Kamis were scared out of their socks, or slacking off a bit before holidays. However, that's true of all of them.