LOL ive been doing mine since July.
The deadening just makes the panels heavier. Think of the difference between a 12" sub in a house which is made of concrete and has no resonance and a car which is made of flimsy metal and tons of resonance.
And no need to thank that is what im here for. It would be nice to have a mention on TA. It seems that TA gets all of the commercial credit for the people that get help here.