Quote Originally Posted by jazz154 View Post
Higher level weapon gives more experience... it's just that it's barely noticable, so it could as well not exist. Level 5 SR fire spear gives me 125 exp, while lvl 10 SR fire spear gives 138 exp.
From what i've seen it also adds to your chances of weapon skill leveling. plus it will pass any of your + to other weapons. So yea overall not optimal but not useless.