I think I remember a hammerspace armory being one of the Charms a Solar could take, but... well with the single most basic charms available, Tenten could go from chucking a weapon at someone's head to throwing the weapon at a specific point on their face so she could predict which way they would duck/flinch/deflect the weapon and use that.Oh.
Yeah, I dunno. Ten ten should just spam weapons at Temari them, but better?
*Shrug* I'm not actually that familiar with the Thrown charm tree so I couldn't say how that would be more. Much less with the altered system we're using here. For all I know we don't even have the same charms anyway.