OK, I quit.... I'm just gonna use the 2 link v-bar chains. We just went thru the East Coast Winter Disaster this year, and my primary Wheel Horse 520 H with the 44" 2 stage blower just did magnificent.
http://www.youtube.com/watch?v=PxPAd65Ksb4
All I wanted the sneaky B5100 for was as a second backup to my main plow unit, a fully restored Wheel Horse 953 using the standard Wheel Horse large frame snow blade and 2 link v-bar chains. I (re)built a new plow frame to fit both the Wheel Horses and the Kubota by adding a pair of simple weldment extensions to the rear to attach it to the Kubota mower deck rear axle plates, and an extra cross member weldment up front to use the Kubota front belly mower lift points. This is not a primary money pit tractor(yet) and having the Simplicty 7790 as a grass cutting unit does make it easier to mount 'something' on a tractor and leave it on, so that was the reason for putting the new heavy frame plow on the heavier tractor - the B5100 outweighs the 953 by about 250 pounds, has 4wd high/low and a locking rear.
Lets see how this all shakes out... I have to spread my tractor money across four of them, so this could be interesting.
Thanks for all the research and insight guys.
Rob