Ive had my V4 (newer version) for just under twelve months now and ive replaced every fuse at least twice. Ive spoke t gavin at GM Audio from who the unit was purchased and he has told me to put bigger fuses in on occasions, some even double the ratings! I love the amp but its reliability is becoming a serious issue.The final straw was when a valve plate decided to glow and take a valve fuse out. After replacement, its been fine. The bias is steady too. Anyone had similar experiences with the later generation V-Types (V4 & V8) or even the earlier ones? The amp doesnt get used lots but at least once a week, it doesnt get driven hard either, its driven into a Peavey 410TVX by either my Warwick Streamer LX or my '75 re-issue Fender Jazz. Ive threatened with replacement too, an Ampeg SVT or Hiwatt Custom 400.