I really don't think it's Pinfari at all. I could be wrong, but I'm pretty sure they haven't built anything new for years (gone bust now?) and since this coaster opened in 2010, it wouldn't make sense. Plus, that loop doesn't look very "Pinfari" to me either.
Isn't the guy from Pinfari designing for someone else now though?
I doesn't look very "Pax" either to be honest; the layout looks a bit too simple for them.