Just put new Fender branded pots into an old tele so I guess they would be CTS. Work well but not as tight as the Les Paul which I have to do next. Plus the CTS shafts seems to almost wobble - very slightly. Had Alpha pots on an Epi SG and thought they were really good so don't understand why everyone seems to want to replace them. Although that guitar sounded like it had a blanket over the amp so maybe the pot K ratings were too low, poor quality control. Seeing all kinds of different things out there. What's the diff between a Dimarzio Custom Taper and a regular CTS - anybody know ? What about the Emerson from Stewmac which is really a CTS to their specs ? How about RS ? Not a tele but what is the diff between a Gibson 500K audio and a Gibson "Historic" ? Seems like marketing hype to me. Also have a modern LP Studio which has 300K audio volume split-coil and also 500K linear tone - rather than 500K audio on both --- works really well.