Cooper Discoverer HT3 or Firestone Transforce HT

Cooper commercial grade SRM II were dropped so I emailed Cooper to see which LT tire they recommended for my tri axle trailer with 5.2k axles
Their reply;

Email to to Cooper Tire;
I used several sets of SRM II LT235/85-16 E on my trailers after Cooper tech folks recommended them with great success. One triaxle trailer is due for new tires before winter but I don't see the the SRM II on your web. Question is which one of your highway tread LT235/85-16 E tires do you recommend for using on trailers now ?/ Thanks..... Jim

answer;
Cook, Les B. (LBCOOK@coopertire.com) Add to contacts 7:40 AM Keep this message at the top of your inbox
LBCOOK@coopertire.com
Jim, the replacement for the SRM II tire is the Discoverer HT3 tire. This is an excellent tire for your trailer application. Thanks, Les.
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I've used the Firestone Transforce HT on other trailers and had no issues with them. Great tire for a heavy trailer.

I have run both, I would go with the Coopers.

Had the TransForce on our 5er and they were excellent. I do recommend them.

I think I would go with the Cooper. I've heard good things, and I just had a set of Firestone wear out to early, just running on Jeep Liberty.

the firestone is steelbelted nylon wraped