Mods to tubescreamer

[mindwave_21]

Hey, has anyone done these mods or built a tubescreamer from scratch and done  mods?  How has it worked out for you?
http://www.robertkeeley.com/audiokt88/tonecap.html

[fretbuzz2003]

I bought a TS9 from Keeley (forgive me, it was before I started building my own pedals). It does sound fantastic. You can find more information on the popular mods from R.G. at:
http://www.geofex.com/index.htm