Hello from one VH fan to another.
I have the 75 and have not had the best luck finding earlier VH tones from it. Using the 6505 green with either the tube screamer or Xwild pedal as a boost does pretty good. There is just something about his earlier tone that the Vyp can't get, no surprise I guess. BTW, if anybody has some good settings for this, please post them.
However, 90's Hagar era VH is a bit easier. Here's a pretty good example.http://www.youtube.com/watch?v=40LhydoX ... UN6QCSl7Os
As for learning more about his effects and settings here are two great places to start.
Metro amp forums http://forum.metroamp.com/viewforum.php?f=16
JFrocks - Some pretty good info on tunings and effects settingshttp://www.jfrocksguitarlessons.com/jfrocks/tips.html