Emerson Custom Guitars Prewired Assembly, Vintage Les Paul, Long Shaft Pots Les Paul Vintage Series Long Shaft Prewired Standard Assembly. This is a prewired harness for USA Gibson Les Pauls For import guitars you may need to enlarge the holes for the higher quality US spec electronics to fit.(Pickup Selector Switch not included) Each and every Emerson Custom Prewired Assembly has a Volume Mod on each of the Volume Pots. The Volume Mod helps to retain clarity when you roll back your volume knob, and it also adds a little life to your pickups. From our premium tolerance CTS potentiometers (+ / - 10%) to the quality Switchcraft input jacks and Oak Grigsby switches Our Prewired assemblies are very easy to install, on the Strat, Tele, And PRS style assemblies all that is required of the end-user is soldering the pickup leads,grounds & attaching the input jack to their guitar.