Simple sion question

I believe that is intended.

I can just imagine ulting along a wall and flashing over it to hit some poor person. Rito pls.

Ya thats what i tried to do the team was doing baron and i wanted to flash over while ulting, thats how i learned

It wouldn't make sense. Flash cancels all movement and abilities for a sec right after you use it, so Sion would essentially cancel out his own ult which really defeats the purpose.

You can't.

New sion is very fun, but is easily outclassed by rammus. Sure sions ms steroid makes him go farther, but is it on a 12 sec CD? Can you use summoners during it? Is it affected by MS? No.

Im pretty sure its intended so that you are locked into where you initially used it and how you steered it.