Acme silver fuses


Does anyone know if there is a break-in time ?
Do they sound harsh/hard in the beginning ?

Thanks !
grisslehamn
Well guys the Acme cfc fuses of the slow blow are directional. I found if the high end has the sparkle the fuse sounds best. Bloated bottom end and dull top end the fuse is in the wrong direction. As of this time they are burning in nice and letting the music flow thru the NOLA KO speakers. 
OK, let’s extrapolate. The Acme fuse is directional. The Acme fuse is a silver-plated stock fuse. Therefore all stock fuses are directional. The reason they’re all directional is the wire element in the stock fuses are directional. Therefore, all fuses, including aftermarket fuses are directional. Finally, gentle readers, 🔜  all wire is directional 🔚 since we just established the wire in all fuses is directional. Any questions? 
Holy cow...fuses too. I give up..I've painted them with this German, concoction that was used for better contact. It was free to me as a gift. But like 250. USD for that stuff. I applied it 2 times and never removed it.
That was the instruction. lot of 24VDC fuses got painted, through the years..stopped a lot of problems...What about that stuff ever use it.
Stopped arcing, growing green stuff. I'll find it.. Wolfcoat!! I think that's it..

Regards