I know this has most likely been asked 100 times . but being a newbieto the forum forgive me . how long do they last ? pros & cons. have been around skid steers most of my life. have had them on their sides, top, backs, an way deep it mud. (yes lucky Dad did't beat me to death) the Bobcat rep always told me he was going to get me a job in the R&D dept. never had a track machine. got some demo work. lots of work around the farm to do. an maybe pick up some odd job. thanks Dave