Did some magnet swapping and pot swapping lastnight in my Super Tele.
Neck has a stock Duncan 59 with 500K Volume / 500K Tone.
The Custom in the bridge was sounding kinda shrill next to my Les Pauls, so I put in some 300K/300K pots, and changed the magnet to an UOA5.
Big drop in volume, clarity, balls, everything... really uninspiring sound.
This is my zillionth magnet swap, and soldering/electronics install, so I'm certain that I did it right. Do you need to use 500K pots with the UOA5s?