In my never ending quest to never leave well enough alone I clipped the bright cap off of my JCM800. I think I like it better with the cap in place. The amp didn't get dark by any means and the treble knob did become a bit more useful. It seemed to add a "low-mid" frequency to the tone that i didn't like as much as it is right between the low and mid pots so you can't really dial it out well without affecting something else. Since I tend to play the amp with more of a clean setting it lost a bit of it's "karang" that these amps are known for. I of course clipped it out, rather than desoldering one end so I guess it's off to radio shack tomorrow to pick up a new one. Oh well.