[kuri]

I know Boyle is not a fan of scorpions nor windshield wipers due to the fact that most people are going to rotate at the lumbar.

If a client has a history of low back issues or tends to use lumbar flexion/rotation (which is most people) instead of thoracic then I'm going to be careful to cue them. I don't normally have anyone do scorpions anyway and instead use a roller to work on thoracic flexibility and other movements for dynamic hip work.