I am buying a ZTR to mow 3-4 acres at my home. I am leaning toward a Scag tiger cub with 48" deck. My only concern is there are no anti-scalp rollers on front-center of deck. They are more toward the outside of the deck. The landscape is not the smoothest. How important is it to have rollers in center of deck? Is this going to cause a problem with scalping? My other option is Exmark Lazer CT, but I really don't trust the dealer as much as I do the Scag dealer.