Well at this point and time it's about comfort, the KW 8 bag just isn't cutting it on ride anymore, and this is coming from some one that would rather not own anything else. The truck belongs to my dad and since he is in his early 60's he needs something he can sit in all day that won't cripple him, and after riding in this truck I have to say it rides better than my car.
I would have liked to have found a truck with the ag380 or the ag400L, but that didn't happen, and there just isn't any room in a peterbilt unless its one of the plastic models.