Exactly. I took out the factory insole. The Super Feet insole came one size larger (size 11 instead of 10). The new insole helped to stretch the base of my line some to create some more room. It also keeps my arch in its natural position which also made the boot more comfortable.
Update on Super Feet: I have gone out on 4 occassions for about 3-4 hours each time, and the Super Feet have worked wonders. No complaints about sore feet, or constantly adjusting boot laces, or binding straps. Now my body fatigues faster than my feet. I strongly reccommend picking up any kind of after market insole. And no, I am not a Super Feet dealer.