Hi. I am now going to buy a new kite and I will go for the F-One bandit 6. I have ridden the Slingshot Octane, size 13, for 3 years now and I really liked this kite. The problem now is what size I should go for when I change to F-One. The Bandit 6 doesnt come in size 13, so I have to go for 12 or 14...