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You have my vote.

An Ace or ACE sounds about right.

Catchy and easy to remember.

He aced it.

Acing it.

Making an ace.

If we keep with the theme of threads-- spooled string-- maybe we can say that whoever wrote a thread using exactly 240 characters threaded a needle?

That is a good one.

I like it.

Ace is good! @l337m45732 suggested #stitch which I also enjoy :D

ace is cool too