Yup, finish the 100 hours of "break-in" and your capacitor will feel so old already.
Capacitors do not require break-in. They can only degrade in performance over time and use.
I can understand valve amps require a period to stabilize for the tubes to function right, but you're talking of just minutes here, and you do that everytime you turn them on. Same with the bias current in transistors, you will need them to reach a certain temperature to get the right bias, but we're talking just seconds here and you get that everytime you turn on the amp especially in cold climes. But breaking-in electronics certainly flies in the face of established facts.
Except for speakers, anyone who tells you you need to break-in a component, you better find another store. Because the product must be so lousy as to require that you get accustomed to the sound.
Because 100 hours of break-in is about the right time for your ears to get used to the sound.