I think on this site that there are quite a few people who have used different sound deadening products for different cars. You have your opinion and I respect that. I also have restored and customized more than a few my self in the years of working on them along with others with even more years than I'd care to think about. I've used dynamat (good) hushmat(ok), fatmat extreme(make sure it's the butyl kind,better),rockmat(80 mill butyl great stuff but not aluminized) and my favorite(and really,really expensive) Lizardskin(69 charger took 6 gallons @ 187.00per 2 gallon bucket).
Dynamat was (10-15 years ago or more and the only player out there at the time) and still is a great product. Expensive but not as good or expensive as lizard skin,Other products have come alone that work as well. you call them knockoffs but they are sound deadening products in their own right. I wish I could afford lizard skin with micro balls in it to fully do my next project since it will need even better sound deadening and heat control than you can get from Dynamat and a radiant barrier.
