[Burner]

To hit it straight, during impact,

1. is it possible for the clubhead to move inward while going downward?

2. also, is it possible for it to move outward while going upward?

Thanks for the attention.

Are you asking if the club head is subject to centripetal, inward, force on the down swing and centrifugal, outward force on the up swing? Or, are you inviting a discussion on bent plane lines, D plane lines and such?