One of the fun things about building electric guitars is wiring them up. Factory wiring tends to be simple, minimizing the amount of fussy handwork required. Many manufacturers keep strictly to 'classic' designs, seldom if ever changing anything. These designs are generally simplistic, often crude or even stupid, and sometimes outright flawed. There is no need for you to do this. I don't. Here are some of the things I have done over the years. I don't claim to have invented any of this, although some of these schematics I have never seen anywhere else, and had to derive them myself.
I went into the electronics, and reversed the leads on the volume control for a nicer 'sweep'. Then I started troubleshooting a problem with the passive tone control that turned out to be an interaction with the EXP circuit. Long story short, the EXP disables any tone control that is downstream from it. I moved the tone control upstream, and now it works fine. I have a separate review for the EXP tone control, I'm not all that impressed, but I'd say try it yourself, it's not expensive or difficult to install.