Replacing fuse

That’s complete hogwash. Almost all fuses come with 30 or sometimes 60 day money back guarantee. One exception is the very latest Audio Magic Ultra Beeswax or whatever it’s called. As for NASA fuses you’re all wet on that one, too. The NASA advanced fuses were discussed a few months back by your humble scribe, who happened to be in satellite operations for NASA for a bunch of years, including pre-launch activities, launch and on orbit operations. Better luck next time. Besides, could 70,000 satisfied aftermarket fuse customers be wrong? 

Huh, when I asked VH audio about returning a fuse I didn't like, he stated the only manufacturers that allows him to do that was Synergistic, and only with the BLACK and BLUE fuses.

@analogluvr 
I'm on the same page with you. 3A Bussmann fuses from AutoZone. Gone through a 6 pack in the last year screwing around with my amp and not letting the CL60's cool between power cycles. $50 fuses are snake oil. 

@geoffkait 
I'd say the hudreds of million, if not billions, of satisfied no-frills fuse users being pretty satisfied outweighs 70k if we're going to debate the varacity by numbers. 

Are you channeling Carl Sagan? Are you now the spokesman for the Silent Majority? Are they satisfied like cows in the field? 🐄

Did you mean veracity? Maybe velocity. How about varsity?