I'm 15, 5' 8'', and 133 pounds. I consider myself an expert skier on the steeps, but I still have a lot to learn in the park. I'm about to order line masterminds that I will center mount and ski 90% park with. I love hitting rails but I also do some small-medium jumps. Just to make sure, are the 167s a good length for me? Keep in mind I might grow another few cm.