hey guys, brand new here. I have an older laser z, 2008 I think. I have a strange question. I’d like to mow my pastures with my zero turn because it’s faster than my tractor/bush hog but only if I can get the deck up high enough. When I put the deck at its highest point using the foot pedal and the special high slot above all the pin holes, it is still only 4.75 inches to the blades from the ground. The scale sticker is way off, so that is making me think that maybe I can get the deck higher than that?? Can I shorten the chains to get it higher? I’ll include a picture to show you guys what I have.