I went with the aluminum and since I live not too far from them, I had them do the mounting, balancing, etc. Met Dan up there on a Saturday morning and the two of us mounted them up. Not that i've seen it mentioned anywhere on the forum before, but Rickson has some pretty good methods and equipment to balance those big wheels and tires. He does most of the wreckers in the area along with alot of other bigger rigs. At 75mph on the freeway I track straight as an arrow with no shimmy, wobbles, anything.