I still find it strange that even though some TT manufacturers are useing LT tires and if asked, the LT manufacturers will say LTs can be used for TT service, also we know that LTs under go a much more ridged testing program; still, I have never seen any tire manufacturer advertise or recommend their LTs as suitable for TT use.
It is hard to believe the tire manufacturers would pass up and oppertunity to increase sales over their competition or offer a more expensive tire option.
Perhaps they know something we do not.