Trailer tires - what are you running?

225/75/16LT is what I am running now.(Trailer has 6 lug wheels) Between my neighbor and I we have 8 trailers running truck tires. We went thru many so called trailer tires and had many blow outs and separations. Both of us are going on 5 years without a problem now. I had a trailer tire fail the day I bought the trailer new and drove only 90 miles.GRRRR!