I went a little more aggressive than you. But yes. The sound quality of door closures will definitely improve as a result. You're getting rid of a lot of parasitic resonances in the door system by applying deadening material. At the expense of some weight of course.Some deadening today...too. All doors... Tried to follow your photos here, but I'm sure I didn't do as well. In any case, the sound is much better. Reduced vibration significantly at doors, which is fine for me. When I close the doors now, they even sound different... nicer... more solid (when closing). Does that happened to you as well?
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