I have a problem with my 5E7 when I gig with it. I love its clean sound which I use 95% of the time. But with heavy overdrive the sound thins out, especially with single note playing. I get a raspy low-fi sound that lacks body. Could it be that the cathodyne PI is giving me this type of distortion? I did do the Paul C mod (gave only little improvement) and it is not the speakers (which are 2 NOS C10N's and a G10 Gold that should be able to take the power). Earlier I modified the tone stack which resulted in a higher gain among others (the raspy distortion remained the same though). I could probably also convert the original PI and the preceeding gain stage to a Long Tail PI a la 5F6a and still have more than enough gain. Would this also give me a more solid overdrive tone? I like the amp's size and power rating so I don't really want to switch to a 5F6a. Did anybody try this (the classic narrow panel tweed circuit but with a long tail PI)?