Let Ashe stack q with Volley and Ult

Reason being if her q can only be used at 5 stacks, it makes it very hard to stack on only auto attacks, as getting 5 auto attacks off at a lot of points at the game is difficult. It makes it very hard to kite because you have to sacrifice the ability to kite to stand in and try and stack that q. If you give her the ability to stack with ult, it will make her able to reach those stacks in teamfights and make sure they can fight at full potential.