

Am I missing something?
First time wiring a guitar. Dual humbucker, 3-way switch, 1 volume and 1 tone pot. Pickups grounded to the back of the volume pot. Trem claw grounded to the back of the tone pot.The pickups/controls work as intended through an amp when I touch a screwdriver to the pole pieces.
What's throwing me off is the extra glop of solder on the back of the tone pot. Got the parts 2nd hand, so the solder was already there. Do I need to ground anything else to the back of the tone pot?