Carbon Vs. PU - What Board Works Best?

This Joyride is gonna be a little different from the rest. Rather than testing one board, we're gonna compare two boards with the exact same dimensions...but two very different constructions.
Board specs
Brand: KT Surfboards
Model (both): All-Around Thruster (AR)
Dims (both): 5’6 x 18.45 x 2.13 x 23L
Construction (white): PU core + epoxy resin
Construction (black): Stringerless EPS core + carbon (innegra) wrap, vacuum sealed with epoxy resin.
Which works best? Well, it depends...