I'm with you on that. I'd rather spend the money and do it right one time and not have to worry about it again. I plan to use Lizard skin on my 66 F100 but dont have the money right now so it's on hold.
When you ordered it did they say you can spray both of their coatings on (the heat and sound one)? I dont know why they dont just make something in one product that does heat and sound control in one instead of buying both...???