The Squall is a great disc, but it's fast for a midrange. It's a tweener disc, good for medium length drives or long approach shots. Slower midrange and putters would be better suited for typical approach shots, IMO. Also, I would only own the Squall in SP plastic for added glide and slightly slower speed.
SP and Proline squalls are totally different animals, also SP has less glide than Proline.