The Kubota hoe is 3ph attach (only) and you must also buy the pto pump. The Woods hoe comes as either 3ph or subframe attach, and you can get it without a pto pump (plumbing instead into the tractor hydraulics)......... There are many discussions here about the vices and virtues of 3ph attach vs. subframe and pto pump vs. tractor pump........To be more specific about Ron's observation, the subframe model of the Woods will interfere with a mmm. .....The least expensive way to go (new) is the 3ph Woods without the pto pump. After substantial research here and various dealers, that's what I would do on my 2910 if I bought a hoe new.