I've got a 500, 750 and a Traveler 3000 with three heads. My only complaint was the 750's output adjustment quit working after it hit a concrete floor from the top of a 10-foot stand because we hadn't sand bagged the stand's legs. Still worked - just couldn't adjust the power output.Originally Posted by david b
Have used them for nearly 10 years - like 'em a lot. Lots of accessories from Calumet.