At the end of last winter (my third with my X900 and Boss V-Plow) I heard a large snap and got out to find that one side of my bumper had broken.   I am a conservative plower and I had not been doing anything unusual.  When my machine got taken in for two recall notices I just mentioned the break (which I welded) and asked if this is something they had seen.  Well, in fact is seems that this is a problem and Kubota and Boss have not been able to come up with a fix!  I hope this is not the end!  The plow is heavy, but I hope that something can be done.  I doubt my weld will be a permanent fix.