I used a Megaswitch E-Model 5 way switch which keeps the normal Tele pickup selection on positions 1-3-5 (neck, neck-bridge, bridge pickups) and the P90 is utilized in position 2 and 5 (neck-middle/P90 and middle/P90-bridge). Adding the P90 is a bold and very powerful addition to the already excellent Tele tones. This addition to my guitars is something I will always do from now on. Although my next project is a carved top Tele body with a P90 neck, Bill Lawrence 500X middle and P90 bridge. I will be using a standard Strat style switch from Megaswitch S-Model. The hardest part is waiting for Warmoth to complete the guitar body and all of the custom routs.