Digitech Hothead true bypass with the buffers and switching removed. UPDATE 03/03/2018: VERIFIED - New layout posted, please delete the previous due to errors. I have just completed this layout and it works brilliantly, very low noise. I have JRC4558 op-amps in mine at the moment, test and adjust as usual.
29/07/2018 UPDATE: Updated layout with today's date. As per the comment below, I had D3 and D4 labelled incorrectly.