Last slow update of your life.... this is why you should use the '-c US' or insert your country code.

'1 2 3 4 5 6' is the format, you can choose everyone but there are diminishing returns (redundancy, speed, parallelism!) Don't go too crazy, or update starts to get slow..

no worries, here, still over 500 to choose from!

no worries, just remember the url

This is an update, after a fresh 'fetch' and choosing all 16 mirrors. Don't do that. I never go above eight and that is probably overkill. You will never get "Ookla speed test" levels with anything like this. I have 1Gbps down cable internet.. 50Mb up. Ton's of small files slow down transfers, no matter what. You can and should do a 'sudo apt nala fetch -c [two letter country code] every once in a while.