Enlighten me on these new tube-driven pedals. I use a digitech rp 50 and like it. The guys in the band hate it, they say its too thin/digital sounding, and I should try one of the tube over-drives. My style is kind of bluesy, playing mostly Gibsons through a '81 fender deluxe. Of course guitar center didn't have any tube overdrives to try out, but I liked the Marshall gov'nr and ibanez tube screamer. I also have tech 21 comp-torion, but I never really liked it...too muffled sounding. Thanks for any input.