OK, after adding pressure sensor monitors when the trailer was new 9 months ago, and putting 5K miles on my China Bombs, my Wildcat MAXX has 4 new MAXXIS tires.
We're getting ready for our winter trip of about 4k miles and will now have much more peace of mind going down the 4 lane. Yes, I understand perhaps I've been lucky to get 5k miles out of the bombs. But perhaps, not hitting curbs, big potholes, running them under pressure, not continually turning them 90 degrees in/out of my driveway, may very well have made my "risks" much less.
Who knows? I'm glad they are off my wildcat and it may turn out to be the best $600 I ever spent. At least I'll feel much more at ease as we hit the road in a few days!