Here's my dilemma... I have a bead on a great used V4 (not a V4B) for cheap and I'm REALLY jonesing to get that tubey tone with my PBass or Thunderbird (I'm looking for a Martin Turner/Dave Hope/John Glascock-ish (that doesn't sound right....) type of rock tone...I play predominantly with a pick). I already have a GK 800RB which I love, but does not do the tube thing so well (obviously). Would the SansAmp VT Bass pedal get me "close enough" to the tube tone I'm looking for or should I snap up the V4? Thanks!