</font><font color="blue" class="small">( You need to be researching French drains NOT tires. All the research in the world on tires isn't going to help. You are approaching the symptom not the real problem. )</font>
Lawman, you are spot on correct, and I know that. The ultimate solution is to dry out the land. That, however, presents certain technical and bureaucratic challenges.
The worst case is that, for some reason, I am unable to drain the land. In that case, I need a bigger tractor with better tires than my R4 2910 to be able to get around and mow what I can.
All the other cases presume I somehow drain the land with minimal impact. To do so myself, I needed a bigger tractor in any event. You will note in my updated profile I have gotten a 9 ft. backhoe with my new tractor as well as a 4n1 bucket and a rollover scraper. So, as long as I was getting a bigger tractor anyway, I continued my tire research in parallel.
I will now have all the equipment I need to approach the drainage issue, and I am sure I will be coming back here for thoughts and help on that.
In the meantime, I did want to report just on the radial tire research for the benefit of others, and my enthusiasm and imminent tractor delivery sort of caused me to jump the gun in the middle of this thread.
The biggest challenge was finding the proper front tires. Several radial rears are available that will work. The front tires are the ones that bury first in mud and are the ones that also scuff and imprint lawns. Therefore, I wanted a front tire that had a deep agressive R1W tread but which was also as big and wide as possible to get maximum flotation and minimum footprint pressure. But I also had to live within the constraints of the 4WD ratio calculations, available Kubota rim sizes, and physical interference problems with the Kubota FEL supports.
I finally found that the smallest Michelin XM108 made was being imported into the US this August. It was ideal except for some solvable loader interference that I have documented with pictures.
Attached is a closeup of the XM108 next to the Titan R4 on a Kubota
L3830. You can see how much taller and wider the Michelin is, and how much deeper and more aggressive the lugs are. Yet, because of its size and because it is a radial ply that will squat flat, manufacturer specs and calculations show that it will have a much bigger, flatter and shallower footprint than the R4 and hence will transmit less pressure per square inch onto the ground. Preliminary tests at Woodbury Tractor confirm this.
The real world test happens Sunday upon delivery. After a few glamour shots, I will drive it straight into the Oozama to where I have completely buried my 2910 many times. If Bob Wolff brings a winch and allows it, maybe I will drive in my departing 2910 right next to it and have a head-to-head mud pulling contest.