Had great memories of my first Boss pedal bought in 1981 which was a DS-1. I used it with both a 75 strat and a 77 Les Paul Custom through a 77 Marshall JMP & recall getting nothing but a great full & fat sound. Many people back then were using DS-1's. I took mine from Australia to England in the 80's where I lived for a few years and gigged with it over there & eventially sold it. Fast forward 38 years and had I had a chance to buy again another 1981 MIJ DS--1 long dash totally original for a bargain price of $25 AU. Even with a different guitar and different amps (Roland JC55, Vox Pathfinder 15R Polytone MBII, Henriksen Jazz Amp) I instantly got the great sound that I remembered, but here's the kicker! Soon after buying the 1981 MIJ, I bought two, MIT DS-1's (2009 & 2011) where I modded one of the MIT to the wampler vintage mod (the one with white knobs) and left the other MIT and the 1981 MIJ untouched as stock. I was shocked when I compared side by side the stock 1981 MIJ & the stock 2009 MIT as they both sounded exactly the same in all settings for the tone, level & distortion. As many people seem to dislike the MIT DS-1 and say the sound of the vintage MIJ is noticably better, I found my DS-1 MIT sounds identical to the original 1981 MIJ & both sound absolutely great to me. Considering I paid $36 for the MIT DS-1 & the value of the Long Dash 1981 DS--1s, its great to find the MIT DS-1's are IMO are equal in sound as the vintage ones, but I'm going to say that its subjective for the die hard, vintage collectors/dealers comanding big $$$$$.