Yeah, Eric's a pretty honest guy who gives away the weakest point of every guitarist. Bassists never suffer from the I-hate-my-tone syndrome. But honestly after more than 20 years I got my nice tones together and made a huge improve with the purchase of my JTM45 and my OCD pedal. There is only one tone that I still haven't reached, it's the Eric Gales kinda Strat grit tone, hollow woody sounding...you know what I'm talking about. Overall I had times where I was on the tone quest, but somehow I have reached a good point in my search. Eric, you are absolutely right with the fact that our imagination of good tone changes with the music we listen to.
"A lot of people in the industry want to blame downloading for the state of the business. But I think if most music wasn't shit to begin with people wouldn't be downloading it for free," - Corey Taylor (Slipknot)