I have an SP that I'm trying to break in. Right now it's overlapping a good bit with my Z Force. I also picked up a Proline Hurricane yesterday (my first Proline), and it bombs. PIAS had 3 factory second Hurricanes, and I picked the one with the most dome. When thrown with hyzer, it flips up, turns, and comes back nicely. I may need to go buy those other two to see how flat Prolines fly...