I agree here. Depends on the weight of the camper. My Lance weighs about 2200 and I have never had handling problems with it. Sure, a dually would be even better but so far I have not had issues. Keep in mind the 2nd Gens with camper special have the overload springs in. I am not so sure about the newer trucks having them in stock form? Maybe someone can enlighten us about that.
I think it also depends on the amount of use it will see...
If your planning on using it like a mobile home, then a dually would be better. If its a weekend warrior, then a SRW will most like be fine (providing its not overloaded).
I believe the "camper special" (with the overloads) on the 2nd gen were renamed the SRW 3500 in the 3rd gen...