I have been playing Guitar for over 50 years and have never had a lesson. Would it be good for me to learn theory and take lessons at my age?

Anyone ever play one of these? It’s a Princeton 112 Plus solid state and it gets loud in a hurry. I’m suspecting that the channel 1 volume pot is linear taper, which would explain why it gets loud so fast. I’m thinking about replacing it with an audio taper (logarithmic) pot so the volume increase will be more gradual. Right now the difference between 0 and 1 is insane.

If you could magically acquire the ability of any guitarist—past or present—whose ability would you take? I'm thinking we might find some awesome guitarists we're not familiar with to check out. Even if they're famous, they may not play in a genre we don't listen to. I'm leaning toward Stevie Ray Vaughn.

Ok,I am usually the guy who rolls his eyes when guitar setup is mentioned, and I usually mention how old my guitars are, and that they have never been set up as far as I know. I finally got curious enough to put a metal a straight edge on the frets (I have an 18" metal ruler that is perfect), my 43 year old Peavey Patriot showed maybe a mm or more of space between the edge and the 9th fret. I adjusted the truss rod and after a bit of tightening, when I spanned the frets, the straight edge was right at the point where the straight edge was just starting to touch the center frets, I checked it out, and the action was kind of like look at the guitar and say A, and it plays A. I decided while I was at it, I would adjust the pickups a little, and now, it's just a rock and roll machine! I played it a couple of days until I couldn't stand the itch any longer, and swapped the Peavey out for my 06 Strat, and ran the same deal on it. I first found that it FELT like the truss rod was getting looser as I turned the Allen nut clockwise, and my measurement seemed to bear that out, so I went with what was working, it seemed like a lot of turning, but eventually I got to the point where it was a fair fit getting an omni guitars business card between the center frets and the straight edge. I tuned it up, and adjusted the pickups a bit, and it is just a delight to play now. There may be room for improvement, but I am in no hurry to play with my bridges or my nuts... no pun intended.

If you could go back and restart your guitar journey, knowing what you know now, what would you do differently? Yeah, I know. I could write a thesis on this. Geeezzz.