Brown Bread isnt even in the same universe as dynamat, let alone the same league...if youve used them all, and seen all the tests, there is only one sound deadener, and that is dynamat....
Adam, in answer to your question, agreed, to stop road noise you dynamat the doors, as they are the thinnest part of the car. The only reason the floor is done is cos why not.....this car were building is going to compete in soundoffs in europe, so if you go that liitle bit further than anyone else, you stand a better chance of winning...Its all about that little bit further...
BTW, there is now not one squeek or rattle from this baby, and it still hasnt got the carpets or std soundproofing stuff back in yet...