Oh well......Still confused, and testy as well.
Try this type of slo-blo fuse in your power amp/s. It has built in wiggle room.
Then you should have directed this directly at the OP, not just as general comment at me or anyone’s amp or amps, to give them some amperage "wiggle room" that just plain dangerous.
Taken from the Electronics Engineering hand book:
"Fuse ageing by switching loads.
The fuse wire gets hot and expands when current flows. At high temperatures, oxidation may happen, which weakens the wire mechanically, and may be electrically, too. Switching on/off a load means the wire is bent each time. This stress may cause a blown fuse at some point even when the current never exceeded the threshold."
This applies to slow or fast blow fuses.,
Cheers George