The ThumbSpin 1.5: It's a ThumbAround with an extra 0.5 spin.

You might wonder why it isn't called "ThumbAround 1.5". Well, there is a little very specific difference but just for now: it spins on your thumb, so it's a ThumbSpin. It's full rotation is 1.5, so it's a 1.5 and not just a 0.5 spin. Try to get the centre of the pen directly onto your thumb.

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