Forest service roads are great. You can get way out there to some very nice places. It just might take longer to get there vs. a SRW 4x4, with a popup TC.
Four wheel low and guides for keeping the TC in place make going up steep roads or dealing with large ruts / washboards / washed out areas relatively easy. 4WD and clearance makes it easier to drive off the road and back, if you need to get by an oncoming vehicle.
The only issues I've had on FS roads with my TC / dually are trees across the road where they cut them out just a little wider than a SRW pickup ....
I carry a chain saw to deal with these and the occasional beetle killed tree(s) that comes down across the road after a storm, while we are out there.
Dually is only 16.4" wider than SRW, once you've gotten a few scratches on the fenders and the side of the TC you don't worry about it. Rubbing compound makes it look better afterwards.
For the occasional low branch (I'm 12' 6") I use a pole saw. If there are too many, I just back up, camp elsewhere and get out the mountain bike to explore further up the road. I carry a piece of 3" wide eternabond tape to patch the roof just in case I don't see or misjudge a branch.
I watch for the jacks to clear crossing washouts and big holes, as well as winding around large rocks. Others on this site just remove the jacks once they have the TC on the truck.
I carry a tire plug kit to deal with multiple flats, if they were to occur.
I carry a PLB for emergencies, since cell phone coverage in Montana is sketchy at best.
11-13 MPG depending on conditions and speed.
