One suggestion for this. The D*A*M Colosround Fuzz Sound has a few different values and an internal trimmer to fine-tune the fuzz. They say that it's set at about 90% - so given that the pot is normally 100k, you could use a 10k resistor instead of a link under the board, or any value resistor of your choice.
Check the MKIII component values table as a reference. Stock values are listed below.


