Has anyone had any luck with the rapid test kits? My Bermuda isn’t coming in very thick this year and I’m worried I’ve got something going on with the soil. I aerated, overseeded, and put down fertilizer and I’m still nowhere near as green as my immediate neighbors, and the bare spots are becoming more prominent. Thought I’d try one of those $15 kits from Home Depot vs sending it off to a university to have it checked.