Do speaker cables need a burn in period?

Thanks for reminding me why I never read your posts.

I prefer cables isolated from floor on maple blocks/sticks, like Pro Gold on connectors,  never tried cryo.  always followed manufacturer on direction, current cables non-directional according to designer...

never tried fishing line

Your cable guy must not have gotten the memo. Also, nothing wrong with maple blocks but I don’t think they are doing much vibration wise since the maple blocks provide a clear path for vibration. 

Clearly. Yet they sound great. Better than his previous cables which were directional