Mine are still running fine, 250 passes. Very little if any lash change on inspections. I don't know if I mentioned it but I had 1 fail at 80 passes. Sent them all back. Got them back a week later, no charge. Don't know what they did but I haven't had an issue since. Maybe they changed all the bushings? Don't know. The failed one was caught quickly on a lash check. gained .007" in 20 passes.
Doug