I've had a chance to put a few hours on my new,(used) rayco RG100. Until now I've been using a carlton 8018 for everything. It's still early but here are some of the things I've notice about both. The 8018 is big and heavy and can be hard on lawns. That said, the weight is nice sometimes; it's pretty a pretty solid platform when you are grinding. The rayco wieghts 3800 lbs, about 1700 less than the carlton. It's easier to haul around and does very minimal turf damage but it will slide around a bit when grinding. The rayco is faster and more nimble than the 8018 when going from stump to stump. The ground speed is a bit faster and you can make sharp turns without turf damage. I would try to make big wide turns with the 8018. The 8018 has a wider swing and will reach higher which is nice for big stumps and up rooted stumps. I much prefer the wireless carlton controls over the swing out rg100's,(I realize RG100's can be wireless as an option). The cutting speed is pretty much the same, the rayco may have a slight edge but they are very close. I think the extra 20 horsepower the rayco has is consumed with hydraulic drive cutter wheel. The rayco will fit through 36" gate the carlton won't even go through as 48" For land clearing, the wide swing and tracks of the carlton would be better. The kubota in the rayco is much smoother and quieter than the deutz in the carlton. The carlton has more chip capacity than the rayco. As far as repairs and operating costs, it's too soon to tell. I know the 8018 is expensive to operate, I'm sure the rayco will be as well. The rayco will now be my residential work machine and the carlton will be used for clearing work and very large stumps where lawn damage isn't a big issue