Forgive my ignorance I haven't been on here in a while and I forgot the best way to search... or there is nothing on the forum about the OCD which I highly doubt . Anyways, I tried out a V4 today at a store and seemed pretty awesome used it with a rectoverb25 *what an amp I want one* it had a very different tone/variety then any of the tubescreamers I've got (not really a fan of screamers but you need them to record the heavy stuff with guitar players that don't pick hard). Although I didn't find much on it about using it with say a 5150 III etc. Anybody have any experience to share about it? I think I'm gonna pick up a used one tomorrow for 70$ might even be a V3. Thanks guys!