Thanks for the reply Dutch!
It is indeed the lime green CTL. It's extremely well built and according to something I read on the hustler forum, they were bought out by Alamo and discontinued immediately. This one was previously owned by SPS electric company and while they maintained it, they definitely didn't care about the quality of the cut so sharpened unworn blades were the least of their worries...
I called Bob Roman and haven't gotten a response. I also emailed Oregon to see if they happened to have any information on file since I hope to be using their blades.