From: * Ask Don of SDS *

Specifically on the "noise reflection from pavement".. I was tempted to look more into adding Cascade to the outside of my vehicle, under carriage areas that were as flat and had seams joining them together... Basically it is like Second Skin's sludge but a little thinner which could be applied by aerosol and was able to withstand the elements of outside qualities... This was the idea that adding mass to the outside panels would seemingly "deflect" alot of the road noises and sounds similar coming from random directions which could not be measured or tested specifically... Some reported improvements which provided no audible increase in audio equipment but neutralized the added environment noise more than just adding MLV to the floor panels... True or not I cannot confirm, but it could be possible... Anything truth to it? Would it be a waste of labor and money to try this theory out?