I was talking to my luthier the other day about the lack of apparent sweep in pots. In his experience, most pots don't have a significant change in resistance until the last ten percent. Many seem to be more of an on/off switch than a true sweep. He told me he just tested a new batch of cts 500K pots and found them all the same. he said there are some very expensive pots, I think the name was Bourne, that have a really good sweep. The downside is that they cost about $30 ea. Does anyone know where to get these pots or have other recommendations?