I have (2) RF punch xlc subs that both have torn surrounds all the way around the subs. Is it worth the money to buy and install new surrounds? If I do I will have to put new dust caps on right? from what i've read I will have to shim the vc to keep the cone straight. I'm not afraid of doing the work, but is it even worth the money to do so? The subs are 10"