I just finished a new overdrive -
Harald Sabro's Workhorse!
I don't usually post something like this unless it's good - and this is really good! It's basically a modded Klon circuit, but it has two qualities I thought were lacking in the original Klon - (1) more gain and (2) better treble response. I can get everything from subtle blues overdrive to high gain Marshally crunch. It doesn't quite go into distortion territory but it gets close. Anyhow, I highly recommend this for anyone who likes the Klon, Crunchbox and similar circuits.
BTW, I modded mine a little, using my Russian D9E germanium diodes for clipping (instead of 1N34As) and my favorite dual op amp, the LF353N, in place of the TL072s.
I'll post the guts of my build in the "guts" thread...