Was listening to a couple of my Herschel Sizemore CDs. His mando has tone to die for. I'm sure some of his stellar tone is his playing. But the tone of his mando...my goodness! Not sure what he's playing though, likely a Gibson F-5? His tone and Adam Steffey's are my favorite recorded mandolin tones.
I've read where Herschel and his wife have been a bit under the weather. Hope they're both doing better.
Anyway, just thought I'd comment on Herschel's tone and playing. If you haven't heard his CDs, get them. You won't be sorry.