Hey there olewichita,
This is a great post. Thanks for sharing great information. I'm looking for you to keep me honest about all this stuff.

Your information is exactly what I've been able to collect as well. When all that stuff came out, everybody assumed it was Roy. It wasn't until years later, I found the truth. Once I began listening more critically, it was easier to discern the difference. Burton used smaller diameter strings, so it was more twangy and slinky.
Maybe you can help me out. My mistery solo is on "Big Time Annie's Square" on Haggard's "California Cottonfields" album. It should be Roy, but I think it sounds like Burton. I've been meaning to ask Bobby Wayne, but I always forget when we talk. Do you know who played that solo?
Another one to mention is the solo in "The Girl Turned Ripe...and pickers came today"...what a solo!!!
I included my interpretation of "Swinging Doors" on my new video. I told Phil Baugh's daughter about that, and how I recognized him for playing the original parts. I need to get her a copy soon, so she can laugh at a hack trying to copy her dad.