they're both about the same in flex, the smaller size are flexier than the larger ones

i would get the gnu thee sk8 banana actualy concaves like a sk8 board . so it is a little harder to lock into rails . and i bleieve they are the same flex.

The pickle flexes more and is more for rails but you can still rock the socks off the jumps with the special heelside edge. the banana is stiffer but not as much.