I just went to look at a used Metro HP 36". It's a quality machine but I have a big concern. There is only one anti scalper wheel on the whole deck !!! I look at the Metro HP ads and they all show the 48" unit that has about four anti scalp wheels on the leading egde of the deck. I was suprised that the 36" did not have Any on the front of the deck. I really expected the front deck to have the anti scapl wheels to lift the front of the deck over any roots or humps... that's why I would pay more for the floating deck !! I know it's only a 36" and 'might not need' the rollers, but it seemed to be a very poor trade off for an expensive machine. Any comments ?