I use a star topology, with the connecting point inside the chip. The ground of the pot and of the input were connected to pin 5 of the chip (one of its four ground points). The pot was directly soldered to the stripboard and for its connection to the input I used a short (~3cm) shielded cable.
My guitar has no tone, only two volumes (one for each pickup). With them the circuit works fine.
My guitar has no tone, only two volumes (one for each pickup). With them the circuit works fine.