My z-turn mower has 3 wide anti-scalp rollers on the back of my deck, that measure the width from inside each tire aproximately. I figure they are about flush with the height of the deck or maybe an half inch lower. I'm cutting them with my welder and making them a little lower to the ground (a.k.a. striping kit). My question is how low I should drop it. The lowest I ussually mow is 2 1/2". So how far off the ground should the rollers be when I'm mowing, I was thinking of 1/2"- 1". The reason I don't put them on the ground for my lowest mowing setting is clearance and I was afraid it would wear out the rollers too fast (plastic). The tires lay the grass over nicely already and I was planning on adding some chains on the back of the frame between the tires also. Should lay a good stripe when I'm done.