If it runs I like it!!! I was brought up on the relay stuff. Otis,Westinhouse,Haughton, US. Did some adjusting on the first versions on micro processor US 1220, 1230. Swift and motion. I stll think the DMC is the best controller ever but would change a few hardware problems. But it looks like the 211 stuff may be as good or better. I need a few more years to see how it holds up.I have been in the office long enough to say drives are not my strong suiet. Adjusted a couple before I went in but not enough to really know them. But I guess what I miss the most would be hunting down shorts or grounds or opens that blow a fuse as soon as the mainline goes in. NOW thats trouble shooting!!!