Here is my rocker jig sitting on the 9'6 production PSH. The jig is set to the rocker of a C4 9'0 Bat Tail.
The rocker aft of center roughly matches on both boards. The rocker forward of center is pretty close until you reach the nose, then the C4 has way more scope.
When you place a straight edge across the middle, side to side, the C4 is flat in the middle with a slight roll (or chine) near the rail. The PSH is single concave in the middle.
What does this mean? Nothing, its just fun to compare and know the difference.
By the way, this comparison only applies to these two sizes. My C4 10 BK pro has a straighter rocker than my 10 PSH.
Bruce Brown has died.
6 hours ago