I have the 1/4" thick SS rotors from Tie Down Engineering. Had them for 5+ years now. On the last trip to the Delta I noticed a constant pull to the right on my Expedition tow vehicle--which probably translates to one of the "left" trailer brakes or bearings pulling the tongue to the left. We checked all the wheel and hub temperatures as well as grease in the bearing buddys every stop (approx every 2 hrs).
Had a known grease seal problem on the RR wheel before the trip, replaced the seal at the Rio Vista parking area while there. The left rear wheel was skidding as we backed the trailer (empty) over long grass up a slight incline, surge brakes engaging slightly. We pulled that wheel and checked the rotor, it appears to be slightly warped, so I will see if replacement is easier (or mandatory) rather than having it turned. I believe it should be replaced, haven't checked with Tie Down yet on if they'll sell me just the SS rotor w/o the whole wheel assy.
I have a solenoid shutoff valve installed and activated manually through a switch on the dash rather than backup lights. I use this switch for backing up hill (at home) and on long, long downhill runs to avoid burning up my brakes or melting the rotors. I noticed on line that their new rotors have cooling holes like motorcycles have, this might be the ticket.
I'm willing to continue with them, they work very well otherwise. Now if I can just solve my grease seal problems that seem to have a short life span, like 2 yrs as I look back on the maintenance records. Fortunately they're pretty easy to replace. I may have to bite the bullet someday and go with an oil bath system like Boris has, but not sure available for my Pacific trailer, or rather Tie Down wheels/bearings.
Boris, great job on resurrecting your old, rusted rotors! That's exactly what mine looked like when I replaced them with these 1/4" SS rotors, thought mine were trash...!