I think the issue here is the expectations of the consumer. I did my foaming with icecube for my ford focus recently and the handling and ride is firm and steady. Also, did the sound proofing for the front engine bonnet, now a more quieter engine but louder road noise. So, win here, lose there. I did not do the complete sound proofing so as to test the results step by step. Back to the main issue, what is the customers expectation???