Under no circumstances would I choose a Carlisle tire over a Good Year or most other American brands. You only have to search this forum, for the constant problems related to the various Chinese tire brands, with the Carlise being most often negatively mentioned.

There are good ST and LT tires being built under the American brands that are made out of the country. Their specifications are such that our driving equipment, habits and their good names are considered when the construction details are chosen. There are American brands built in the states, that have enjoyed excellent reputations. 

You have many choices of tire constructions and sizes. You've had excellent service with the original tires. Why not stay with a proven product? Is it worth $100 to endure a blow out during a trip? Or multiple failures? Have you heard of a positive mention of the long term longevity of Carlisle tires?

Stick with the Goodyear OEM tire.... These people below sell alot of trailer tires online and they are dropping the whole Carlisle line, That tell you anything??  http://www.easternmarine.com/Carlisle-Trailer-Tires/