Glad you liked it and yeah, a tank could probably run over it. I went with fat mat rattle trap because the main dude at the very high end stereo shop where I bought some of my equipment said I wouldn't notice a difference between brands. I bought a 100 sf roll on
ebay for around $150, including shipping. Installation really wasn't that bad. You have to commit to stripping everything out before you start and I had mine completely stripped in a couple of hours and the
deadener laid out in a few more. If you don't waiste any time you could do the whole thing in a day. Some guys put down two layers but I only went with one. Hope that was helpful.