Here's my experience with the subject. I'm a fan of DCS for all the reasons listed above. However, I have found that some radios take a slightly longer time to open with DCS than CTCSS. Not a problem for us "radio people", but I have a group of radios that I use with a local theater. Sometimes the users push and talk at the same time and the first syllable would be missed using DCS. I reprogrammed the radios for CTCSS and that solved the problem. Again, this might be a brand/model specific issue but something to take into consideration.