As long as the value is the same it should not make a difference. I know the new Haz has 100 k volume pots, where the older circuits have 25k pots. One of my 80's Haz had a bad vol pot and replaced it with a standard Emg 25k pot and you can't tell the difference. Not sure what difference it would have made if I would have use the 100k pot that PJ sent, but I wanted to keep the values the same.