The thing is though, beyond just making MORE attacks, I'm not quite sure what else you can do with saturation range attacks.

Protection based ideas
Maybe instead of say, a maneuver that is using precision to stop a single projectile, you could say, use the maneuver and just shoot a TON of arrows out in front of you, giving you effectively half cover or something. (I also imagine a clause in there stipulating that half of these will expend a ton of ammunition in the process)

Range based
Maybe a series of maneuvers that allows you to shoot at a distance, and instead of making the normal AC attacks against individual targets, they become splash damage type attacks from just having the hail. (Probably will still need a range touch attack but still)

Actually, I like the idea of a splash damage type idea. Maybe that's an avenue we can work with?