I have a Mesa solo 50 head running into a B52 4/12 cab. Guitar is ESP Viper with Active EMG's. I am semi-happy with the distortion tones but something is missing. I have experimented with a Boss GT8 modelor but is what not what I was looking for. I liked solid state distortion sounds but in a live situation they sound thin and weak. I am basically just looking for a ripping high gain lead tone. The Randy Rhoads lead sound on the tribute album is the closest thing I can think of to describe what I want. I would like to somehow get close to this with the Mesa. Can anyone reccomend something? Please I beg of you!