Redhorse1, Your thoughts was the delima I went through prior to purchasing my 5er. I finally went with the Revolution. My thoughts were, With a slider, the weight of the trailer shifts at every turn from just in front of the rear axle to behind it. Didn't know if that would cause control issues. With the Revolution, the weight remains constant in front of the rear axle. Also, the Revolution has the option of being utilized like a regular pin if the revolution part is not needed. My final thought was. With the Revolution, I'm not concerned with cab clearance. It is there. No worries.