[Daryl]

I agree ,it is likely to arch.
To some people -not a bad thing,particularly on short ,slow strokes.

I agree. Look at VJ Trolio. His left wrist is arched on the backswing. He makes it work. A hell of a ball striker for a guy from Mississippi. And, he's a Teacher, Author and Inventor and he cooks Catfish and drinks beer. He really has a lot of remarkable qualities. And he's a winner of the Mississippi Open. Renaissance Man. Arch that Wrist!