Ray,
There were a few things that I liked better about the Sloan vs. the Texas Roll-Back. The Sloan was standard with deck lights, 4 wheel electric brakes, and a manual brake on the trailer. The manual trailer brake makes loading and unloading a snap, and the manual brake comes in handy when you park the trailer on a slant, just engage the brake and there is no need for wheel chocks. Overall I felt the design of the Sloan was a little better.
In all fairness to the Texas Roll Back, the salesman at the Roll Back distributorship was not very helpful. At Sloan, I spoke directly with the owner and got all of my questions answered.
Either way you go, I would recommend you get at least a 20' trailer. The 18' is almost too small.
I am sure that you will be happy whichever trailer you choose, it is so much nicer than using ramps.
Good luck!