Let valor attack during tag team!
Changing Quinn's R into a movement speed toggle seems to remove the whole personality of Quinn and Valor, being an actual team.
With how you want to change them, you are just turning Valor into a living helicopter and not a combat trained team player. While the movement speed is nice, it just turns Quinn and Valor into... Well.. Quinn.
Why not keep the toggle and channel to how it's changed and give Valor their combat skills? Remove skystrike on the change back if you have to and make Quinn and Valor a versatile lane opponent and team, like they should be.