Not to throw cold water on the whole nitro thing, but to my ears (that have played, performed and recorded for nearly 30 years now), I can't really hear a distinct difference between poly and nitro. Now I know that there are different types of poly, some really thick and hideous, some very light...and I suppose that most of the poly instruments I have owned have been good quality poly. But again, I've tested my really expensive Gibson Custom Shop Les Pauls against both Edwards and Tokai's with the same pickup configuration, and there just isn't an appreciable tone difference at all...go figure.... :roll: