No, run out has not been checked. When spinning the tire during set up it did slightly grab and release. More of a scrub than a grab. But all of them did this and I noted if the shoes where gigged around a bit it would not scrub and run smooth. Nothing indicated an obvious out of round issue.
I am considering buying an entire hub and brake kit and just changing out the whole thing. It is an AL-KO 4400lb axle, But from my understanding it is actually a 3500lb hub and axle with a heavier spring.
Maintenance is difficult for me, live in a subdivision and trailer in storage. Have to work on it out front of house on street. Not ideal. I may end up just taking it to a local trailer place and have them go at it. Jensen Trailers in Oshawa, Ontario. They have been good to me so far with parts and info.