I own a John Deere 4100 Hydrostatic. I found a Woods Brush Bull BB48 for sale locally. The owner used it once on his Kubota and found it to be too big. I looked on the Woods site and it recommends this model for 15hp and up tractors. I think my tractor has 19 hp and 17hp at the pto. The brush bull weighs 509 pounds. Am I pushing the limits of my tractor? Does anyone have an opinion on this cutter? I will only be using the cutter occassionally around my property. Thank you.