I quickly scanned through this thread again today. While surfing, is “weight” truly constant? I may have missed it in my brief perusal. But, the effect of centrifugal acceleration on apparent weight should have been included in this discussion. Mass makes a difference.
Force = Mass x Acceleration
&
centrifugal/centripetal acceleration is
where a = acceleration,** v** = velocity and r = radius
Earth’s gravitational acceleration is 32 ft/second per second. Times 3 = 96. So if my calculations are correct, a turn/cutback with a fixed radius of 10 feet at 21 mph will produce centrifugal/centripetal acceleration of 96 feet/second per second. Apparent rider and/or board weight will be 3 times greater than stationary (gravitational) weight.
Is “weight” variable because of changing velocity combined with different cutback radii?
Flex, friction, tracking …