I run LT's and have for several years. I make near 90 degree turns quite often, since I seem to have great luck in camp sites and general navigation snafus. Neither tire, not suspension has failed me yet.
No offense, but it seems that there is a tenancy to over analyze when it comes to this. The way I look at it, the ST's I could find locally kept blowing up, no matter how diligent I was at checking pressure. I was done wasting money on them. I bought new wheels (trailer had 15's) and 4 LT tires and haven't had a single tire problem in 4 years. I believe that vehicle tires are built too much higher standards than trailer tires.
Do it, be done with it and forget it!