Quick First Impression of the Rockstar 4.0 by Andrew Regan | Jul 24, 2018 | Playboating, Reviews, rivers, Rockstar 4.0, Whitewater, WW DisciplinesThis design marks quite a stark difference to previous Jackson Freestyle boats, I’ve had the 4.0 out for the past few days on the waves of the Ottawa River. Seated position: The first thing I noticed about this boat was the higher knee position coupled...