I pulled one out the other day; one side thread out easily. The other side I used a plastic drift (but you could use the butt end of a hammer) to push on the remaining cup from inside the BB shell while using a BB cup tool to rotate the remaining piece. Rotation while pushing on on the bottom bracket seemed to get it out with no drama or damage.

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MS: Exercise Science
Your speed matters a lot, sometimes you need to be very fast, where sometimes you need to breakdown your speed.

Tap it out.

While I haven't taken one out, my first thoughts would be to unscrew one side until it has two or three threads engaged, then gently tap the loose side to break the other side free.

Then unscrew completely and gently tap the remaining side out.

What would you use to tap it out?

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Next races on the schedule: none at the moment

Piece of wood

Punch

Screwdriver

Almost anything

Cool. I have a piece of a 2x4 cut down that should fit into the BB opening. Will report back.

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Next races on the schedule: none at the moment