Just to let everyone know, I have this PSU and I attempted this MOD and you may be out of luck. I dont know if this article is very old, or maybe I just got a weird one. But the pots in my PSU are all hot glued in place, VERY hot glued. The space in there is pretty cramped and I couldnt manage to get them to turn any, and I tried for a while. Hopefully you all have better luck.
Josh