I've got 3 jobs out to bid and ATS is under cutting Siemens by quite a bit. I've been "googling" the heck out of the web trying to educate myself. I'm pretty good on the Siemens stuff but have never worked with ATS. I have heard it said more than once that controls are controls and it's the service and support that counts. I realize that but one issue that is bugging me about ATS is that they are not backwards compatable. So you gotta tear it all out to upgrade. Any info, links or comments, would greatly be appreciated.