So impressed with our ABI Equine arena groomer. If you set the bits and pieces at the right height, you can take up the "sod" and leave a level-ish, smooth surface underneath. After Mark had removed 10+ loads of grass and dirt with the tractor and bucket, we were left with a surface which could then be "crowned" to ensure the round pen drains well of water. A week later during one of our 7 storms that week, (yes, one per day!) I took my umbrella and walked out to the round pen during a storm. I was very impressed with the drainage of the rain water and only saw 1 low spot which Mark had already pointed out to me before it rained. Fabulous! Now to let it settle and then bring in some stonedust and sand......fast forward to October and we brought in 1 load of stonedust and 1 load of sand. Mark used the UBI grommer again to mix and spread and level the surface, and "voila!", we have a finished round pen with a great surface!