Measure your blades with them facing inline with how the mower would travel mowing. You should have around 1/4 of difference with the front of the blades being lower than the rear. I have 3/8 of an inch on my RH and don't really get any blow out that I notice mowing. Since you have a fixed deck you'll constantly have a different pitch if you're adjusting the casters for height. You will have to adjust at the blades to avoid this. I ran multiple fixed deck wrights and just learn to cut crappy lawns with blow out and set my pitch for the nicer lawns. I really hated adjusting the spindles for height. At least on the 36 there is only two. If this doesn't help go into the Wright section of this forum and address it with them. I can't remember blow out being a big deal with my 36.