Here, check it out.
http://robertkeeley.com/product.php?id=16
I just got it back, and all I can say is HOLY SHIZZLE! This thing f***in' cooks now. The "digital" sound you get from some settings is gone. The eq is way more responsive to minute movements of the knobs , and the overall tone is just amazing. I may get me another one for a backup.
BTW, I just chucked my Metal Muff in the garbage...haha justy kidding, but I might sell it after playing around with this baby.