Just got this board this year and I've ridden it close to 10 times already. I always rode camber boards and was skeptical about getting something flat or rockered, (and flocka means its flat in the middle and rockers out in tip and tail....basically rocker) but the KERS makes it ride incredibly all mountain. There's no speed wobble or anything you'd get from a normal rocker but you get all the benefits of easy turning and it's much more forgiving than a camber board. Just started park this year so I can't really vouch for it but the flexibility is about 6 out of 10. Though it is a freestyle board, the KERS makes it an everything kind of board because you don't get the noodle response of your average park board.