It took 25 years! All kidding aside, I've had the Marshall for a long time, it's 20 years old. But it was in the closet for a long time because I was using a Boogie. One day I pulled it out and did some extensive experimenting and about 4 weeks later I achieved my perfect tone. That was 6 months ago and since have sold the Boogie. I will never part with this setup! I'd probably go into a deep depression if it got lost or stolen.