I feel the same way as you do on this one keep us posted.
I would be very disappointed if the filled tires caused a warranty issue. They were an option offered and installed by the Kubota dealer. I think they actually recommended it, since the tractor is equipped with a loader.
My thanks to all for your help while I try to understand this. I have about a 5th grader's understanding of the physics involved. Therefore, I will cling to my basic idea that a doggone tractor should not break itself while attempting to claw out of a hole.
I did an after hours service drop off at my dealer last night. Hopefully, I will have some new information in a week or so.