Okay, well here is my opinion so I don't seem like a giant e-asshole.
If last year was your first year, the Griffons worked well. But as you progress they will not be the binder that you need. Even though bindings like the Griffon/PX12/ect. have DIN up to 12, it's not necessarily good to push them to their limit. If you plan on skiing park much long, upgrade to something with a MINIMUM DIN of 14, I suggest 16 if you're 180 pounds. I have Jesters and love them, I wouldn't take anything else at this point.