I went through my whole collection of ODs with my 63 RI Vibroverb today (by the way JPF - thanks for the hint on fixing the speaker problem - you are a scholar and a gent) - and after trying all my bootik things (HBE Powerscreamer, Big D, OCD v.2, Toadworks Lil Leo, etc) the pedal that won the day was a cr@ppy second hand Ibanez TS7 that I modded with a Monte Allums TS808 conversion kit about 5 years ago. Maybe there is something that makes a TS and a old style Fender work well together - but I am glad it is getting a resurrection as it was my first ever mod.