I'm interested in this style stump grinder but on a regular flow machine. You need to call your dealer and have them adjust the shift pressure for the two speed so the hydraulics quit jumping under load
We demoed the single speed one. It sucked. Super slow and on a small stump it would split the stump and then loose its ability to pull itself in. Ended up having to pull out the remaining broken pieces. Also had a huge hydraulic leak on the first stump we tried.
