The Layout needs to be Fixed.
The link from Pin 2 to 2k7 (R5) on Layout should be from Pin 3.
Pin 2 actually goes To 2k6 (R6) so there can be some confusion!
Original Schematic used at
http://freestompboxes.org/download/file.php?id=23453&mode=viewCheers music6000
UPDATE - The Layout has been Fixed.