I can't seem to find a definitive answer anywhere...Do 3rd party flashes support CLS? For example, I am interested in continuing to have access to commander mode functions that the Nikon flashes provide. I've had a couple SB-600s and a couple SB-700s, but I had to do a bunch of shifting around of my gear so I could afford the upgrade from DX to full frame. I may decide to do another SB-700, but I want to weigh all my options out. I have never used a 3rd party flash since my film days and only had to think about TTL. This is a little different. I had an issue yesterday during a shoot between my D750 and a brand new SB-700 which is a story for a different thread, but it nailed home the fact I need to get a backup again quickly...yes I know better. I just want to see if I'd be missing anything and if there are good options out there. Thanks for the input.