Here is the specs. Aerating width 24"s, core depth up to 2 3/4 depth stops 2 1/4, 3/4" tines, .82 acres per hour, up to 4mph forward, up to 2mph reverse, length 74", width 33", Height 50", weight 362lbs with weights, 301lbs w/o, two removable weights 30lbs ea. No tine spacing, 6 in the row I saw. For comparing on the roller tine style machine weight per tine is what matters as they use the same tines. Roller speed may help very little but unit weight over the tines is what makes the difference. If weight per tine is the same I do not know how it could get a different depth. Your plugr is based on weight and the speed the tine is forced downward.