Anyone into Blue Guitars?

[Stringswinger]

My guess is that he used coated or even flatwound strings - there's almost no fingernoise , also/mostly due to a very refined technique - with normal roundwound strings it wouldn't be possible and the guitar would sound much brighter. Here the guitar sounds quite different, with roundwounds :
https://www.youtube.com/watch?v=u9vUXVb1ghI

Slaman offers an archtop with nylonstrings but the demo's I've heard were not very exciting... those soft and relatively low-tension nylonstrings don't drive a top like the heavy load of a set of 12's or 14's would.
The progress re nylonstring guitars and their volume/tone/versatility is happening elsewhere.

He used Dogal 80/20 flatwounds

[jads57]

Have to thank Scott Chinery for creating such interest in arch tops again. Really presented a whole new plethora of talented young luthiers to the world.