hate to say it, but modern graphite spin rods are much better for light trout spinning rods than any glass I've used. I still mostly fish old glass
but something like the Shimano Trout One UL is really a terrific rod.
viewtopic.php?f=33&t=68777&start=75#p372389The glass advantages in a fly rod are a more relaxed cast, better flex and 'fish feel', durability. None of these are strong advantages for a light spin rod.
As the guys say, my inclination would be to build a 4 or 5wt glass fly rod blank into a spin rod.
Now when you get into baitcasting finesse, there's a real niche for glass rods there. I think this guy, Angler Saito, is fishing a glass rod with his Abu 1500 and 2500s, to make perfectly astonishing casts -
https://www.youtube.com/watch?v=UFLL9HF ... e=youtu.be But it's not clear if his custom Japanese rod is glass or not - my guess is it is but.
https://www.instagram.com/p/CHHNldOJDJM/?hl=enThe company makes cane, glass, and graphite rods..
http://www.anglo.jp/