For those of you playing champs, what type of dirt do you use? Lets say a range between a little bite to chunkiness with nothing in metal territory (with the caveat of fuzz). All the suggestions. Would you be so kind to recommend a fuzz as well? What really has worked with you and why? Im leaving it vague for a reason. Please explain why it works for you and which sound your getting. Im talking about a new champ. And while we are on the subject, what speaker/tube combos do you recommend for as clean as possible. Oh, one last thing... is it worth it?