Thanks for all the input guys. As far as what I'm running, it's nothing extravagant, just an LMS-R 12", I'm just trying to eliminate as much road noise as possible. I was actually thinking about doing a layer of Damp Pro basically everywhere full cov, a layer of spectrum, then adding luxury liner to finish it off. I may do SPL comps for specific categories, but I still need to get my stuff in first