I've got (2) 3 Pro's. I have no issues with these. They don't suffer from volume issues. I like the tone, and I'll mention that I never use the graphic EQ. Curious to know what I would gain, tone wise, by moving to a CL... 50 pounds of a weight, plus back problems are already figured in. I realize I would have to worry about replacing power tubes on occasion. I use (2) 15" Ampeg Classic cabs, and can already move some air. Would the CL really give me anything I don't already have?