Hey Jack, sorry to read you give up on being a witness for our blockchain.

IMHO this is a mistake as the one and only thing that is required from a witness is to provide a reliable node for block production, a duty that you have fulfilled and that you could continue to do without impacting on your life that much. Being in the top 20 of course adds other requirements, but it wasn't your case and it doesn't seem to be a priority for you.

The other services that a witness can provide, although obviously much appreciated, are incidental.

Therefore, I'll leave my vote for you for a while, in case you change your mind.