Up here in the north west exo's can hang you up on EVERYTHING badly. But thats mainly only in the Rimrock area where the tree's are flatfender width and you have to wedge your rig into them. Im going to do a partial exo when I do the rest of my cage but its'll only be there to protect the A-pillars and the roof line. The b pillar and rear of the cab will be set half inside of the cab so it'll still be a smooth trasition over the tubes.