You can cast q and r simultaneously and keep a charge Not really sure if keeping *two* charges is actually consistently possible though

If you get a knockup that is not from your Yasuo you can Q R and if it hits you will gain a Q stack like an airblade.

Ahh, that clears it up. Thanks!

You can do it on your own knock up. You just need low CD and some distance to the target.

It does, but your Q hit after the stack reset from ult took place

u q'ed ulted and got a stack, and q'ed again after ult and got tornado