Got our Maxxis tires on today. Trailer pulls great. Granted, it was about 26 miles round trip.
Tire dealer said the line around the diameter of the Trail Express tire was breakdown from turning. And yes, I avoid tight turns.
Gave me $$ for our 14 inch rims and a full refund on the Carlisle spare we bought.
Very happy with the new tires so far. We have a trip the end of this month which will put about 400 miles on them.
Also looking at a TPMS now based on some input around these forums.
Thanks for all the help!!