Promise not to chew on your head! haha... Seriously New England is FULL of rock, equal rock to mud, and they perform great on both... boggers have been known to kinda suck on rock, but there is a guy in my club running 35" boggers and he walks all over the rocks, plus its all Dan Dibble uses, haha (youtube that name). It seems that swampers are the desired tire for off-roading here in NE, I think they would to great anywhere personally. Lastly, about the beadlocks, I have seen and heard of these tires coming off of many rims, but they usually are being run at lower psi like 5 to 10, I run mine at 15 and have never had a problem. And the guys I know that run beadlocks are doing some serious rock climbing, or just flat out want the look and can afford it :)