Short version: how much higher should you set a Scag than a 21" Snapper so they mow as close to the same height as possible? Longer version: I use 21" Snappers to cut my lawns, but occasionally, I have to have our company's other crew mow them for me. They use Scags. Needless to say, they always end up cutting my lawns either shorter or higher than I which makes for a bigger problem the following week. While I get told it's because they don't know what my numbers mean on the card - I write te height in settings - I venture that even if I was writing the height in inches, if they set their mowers to the same height, it would cut lower because of the weight. Am I mistaken or do the wider frame and tires offset the extra weight?