Push / Push Pot. I have those in my sustainer strat. Stealthy way to switch, just a flick of the pinky! I bought them at my local music store. The wire tabs are much smaller then the push / pull or at least on the pots I have, made it challenging to sloder but all is good! I needed the extra room because of the electronics for the sustainer. I liked the size then when I installed them I realized how cool they were and easy to switch on the fly. Allparts has them http://www.allparts.com/EP-0296-000-500K-Push-Push-Audio-Pot_p_1312.html