I hit real loose. The main reason i suggest setting that wrist at first is because you may be dropping the racquet head early and not realizing it. This will ensure that you wont do that and will build a habit really quickly.
The end result is to be able to hit big shots while staying loose and using proper timing and weight transfer to hit the ball. Long story short, i believe solving the wristy stroke issue many times needs to start with making sure the footwork and prep is correct.