It’s called a metachronal wave, and it could happen in any direction.
It’s just a case of lifting and moving bit bit at a time, and the direction of which bit moves first is more personal preference, any direction will still work.
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It’s called a metachronal wave, and it could happen in any direction.
It’s just a case of lifting and moving bit bit at a time, and the direction of which bit moves first is more personal preference, any direction will still work.
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