sunking v3 gain pot sweep issue

[Philosopher]

hey guys, i built the sunking evething works, but when the minimum spot of the gain pot there is no sound, also until %70 of the pot i cant get overdrive much, im using cort hss strat, and 1n270 diodes, also changed 3n9 to 6n8, but gain pot have 97K at max. any help? thanks