The 12K trailer was pretty much at its rated limit, but the one tire seemed to be holding up the load OK. The tire was a bit warm though. I have my hi-lift jack in the truck now & a new spare tire mounted so I am ready. I dont think I will be plugging any more of my trailer tires. If I get another flat, I will have it patched from the inside.
Another question: Does anyone balance their trailer tires. I dont see any lead weights on any of mine including the spare I just bought. I didnt request a balance job when I bought it though.