hey ns, im looking into buying last years konflicts from a guy in my town. i was wondering if they will be good in the park as well since i spend most of my day in the park. i dont know if they come with the flex 4 tounge, is this tounge different than the booter flex 4 tounge? my friend told me that i wont be heavy enough for flex 8 tounge. i weight 130 pounds. thanks. +k for help