brian - My installer said he would need 3 rolls of the
VB-3, but he was really cool, and told me to buy just 2 rolls, cuz he had some leftover from a previous project that he would use on my car, free of charge...that's probably the reason for the extra seams you see in the pics.
brian - your thread on the b-quiet install was actually what made me want to do sound dampening. I plan to do the pillars like you, but will try to do that myself one of these days.