Small Stone unity gain mod

[Greg]

Hi,
Built a Small Stone clone yrs ago and it's been great except for the volume drop when it's on. I think I remember a mod to cure this being on some site or other but I can't find it. Can anyone help me out?
Thanks,
Greg

[NaBo]

GGG has it: http://www.generalguitargadgets.com/bom/smallvlp.txt