Not sure if this is the right forum to post this thread, but here goes. I have a great tech but I'd like to learn how to do minor adjustments on my own (especially if we keep going in and out of lockdown). Some of my electric guitars have truss rod adjustment at the headstock while others have it at the base of the neck. Any recommendations as to what tool(s) I should use to adjust a truss rod? I probably will start with my most recent purchase, a Squier CV Mustang, whose string height is just a touch too high for me. The truss rod adjustment is at the headstock.