Has anyone tried this tone control in a Gibby? What are your impressions? It uses 0.02uF, 0.1uF caps and a 4.7k resistor. I installed it using Hovland caps, a tantalum resistor on a 500k audio tone pot. I like the way it sounds, no mud at all and i think the mids are more there, the bass is clearer all the way and the treble rolls off evenly. The effect is more subtle. With the bridge pu tone all the way down i can get a really nice "woman" tone and vowel-like feel. I'm using Gibson Classic '57 & Classic '57 plus pu's (tbc). Overall, i feel it's a very useable, musical tone control.