well, I didnt use the 500 k to tame the brightness....I wanted the RS pots because of their increased range(the tone pots are more "usable"...)so, I ordered 500 k pots AND as a result the guitar(which had Mules) became too bright-I tried a 300 k pot and it helped the brightness, but the pots I bought from RS were 60 bucks, so I didnt want to trash those -instead, I bought the Bombs,which set well in the bright PAul with the 500k pots-I think a lower value pot with the bombs in a Paul LIKE MINE would definitely be too dark-guess you could say I used the bombs to cure the darkness :)