I have a kubota L3560 DT it has a shuttle transmission with a clutch. The WG24 works great but a little clutch feathering is necessary without a HST transmission or a very slow creep gear. I put my FEL in float position and curl back and forth to avoid slipping the clutch to much. Then reset the tractor and repeat. the average 20" pine stump takes me about 15 min from 6" above to 6" below grade. It works good for me and so far the teeth have held up great after 40 or so stumps. Its not as fast as some grinders out there but at this price point its hard to beat and having it ready whenever I have the time to grind a few is worth any inconvenience of not having a hydraulic head. Especially since I have 500 or so stumps waiting.. I didn't see much info on using this stump grinder with a manual type transmission so I thought I would post my experience. It weighs around 450lbs and looks/feels solid with grease zerks where needed