I discuss small plot university research with fixed treatments vs. golf course and sports turf maintenance with treatments that vary, and consider which results we should trust more. I also discuss the bobble test after 270 rounds, mention that core sweepers are a nice machine, and explain how I estimate N harvested in creeping bentgrass clippings. Posts discussed and relevant links include: https://www.asianturfgrass.com/post/ball-roll-after-270-rounds/Short bobble test video with T-Jay Creamer: https://youtu.be/Y2Fbw8Ks-gEATC2x episode with T-Jay about management of the greens: https://youtu.be/NJwc7XJQRGkBobble test rating scale: https://www.asianturfgrass.com/post/bobble-test-rating-scale/MSU Turfgrass Information File database: https://tic.msu.edu/databasehttps://www.asianturfgrass.com/post/green-sweepers-that-work-beautifully/Cleaning aerification cores the easy way in Japan: https://youtu.be/yv26e9rqwBwhttps://www.asianturfgrass.com/post/nitrogen-harvested-in-clippings-calculation-update-for-2024/ Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/Get ATC newsletters at https://www.asianturfgrass.com/newsletter/Turfgrass information and decision-making tools at https://www.paceturf.org/PACE Turf YouTube channel at https://www.youtube.com/user/paceturfATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter