The two mowers noted in the title are practically identical. The Simplicity deck has rear rollers across the back, the Snapper only has wheels on the left and right rear of the deck. Both mowers have front wheels on the deck. Are Simplicity's much touted rollers of any true benefit, or are they simply something else to clean? The Simplicity dealer also emphasizes the Simplicity is a true floating deck and the Snapper is not; is this marketing fluff or is there something too their comment? Trying to decipher my way through the maze, all input welcome. Thank you.