He still might take the redshirt without the recruiting notification, it just won't be 100% chance that he'll take it with no WE drop. You could always take off the RS notification, hope he considers you and signs, inform him of the RS and see if his WE drops (or just drops a small bit). If you don't like the WE drop, you can take it off but don't bother putting it back on as that has changed and it'll only get worse.