I ran the Dune Stars on my only trip to Glamis, so I don't have any basis for comparison to robbing power etc. I would just say that they do provide more bite than I anticipated. I took the 4 of us just about anywhere I wanted. The one thing I noticed though, was that being mounted on 7" wide wheels makes for a narrow footprint. Apparently, 9" wide wheels would be ideal, but they would be custom order from someone like Douglas. So, anytime tracking down fluff on the backsides - the rig would really plow. You would almost have to gas down some stuff. The one advantage to the itp dune star set up I see is cost. There are better set ups out there, some guys are running sand tires unlimited on rear and shaving treads off of like terra crosses, but depends on how much time and money you have to throw at it. Some guys just air down!