This is my second year in the business and have 12 residential accounts. I do this with my sons who are 17 and 19. A good way to spend time with them and make money at the same time. My problem. How do you set the height on a 48" walk behind Scag. From what I can tell you can change the pitch on the casters in the front of the deck. However, there are spacing rings on the mower spindles. When you put the spindle up through the spindle housing do you put the extra spacers at the top? Do you ever put the spacers below the blade? Any thoughts on checking the mower height? Thanks for any advice.