To add, I tried some Movement sparks (82mm waist) out and was not impressed. Too soft and flappy, seemed to catch the tip and tail edge a lot, especially landing switch or off balance.
Also Movement Gladiators (92mm), which were fine in deep powder, just the right level of stiffness but rubbish on groomed piste and felt poorly made all round. Very light though.
Stick to the Joysticks.