Go with the Rhino, the heavier the better.
I don't think so . Just be careful and know your limits . Rhino is the way to go !the Rhino LR I saw had multiple adjustments the one that really caught my attention was the ability to slide or adjust the blade to the right or left evidently for ditch work which would be most helpful. Was this my imagination or is that the purpose for the R/L option also, it would be on a Kubota B7800 would a six foot blade on this compact make it unstable ?