Hello,
The Massey weight is a little more then the B2601 (good for the snow and earth moving), but doesn't harm the lawns, lighter than the CK.... I have a single axle (5500 lb) trailer and works great with the tractor on it. I didn't get the opportunity to test drive the Kubota. I use a Kubota BX 25 series and over all, rather the feeling/performance of the massey. I had great luck with the GC1720 so I stayed with the Massey, even with the distance to their shop, great dealer to deal with and Massey feels better in the seat, to me.
Take care