I'm not sure if I'm posting this in the right forum because it could cover DCS, Bluerail, etc.
I have two conventional Lionel 0-6-0 docksiders from a few years back. I originally was going to drop a Mini Commander 2 board in them to make them TMCC controlled but then a guy told me Protosound 3 can run off wifi and that's handy if your friends get the app on their phones. And then I started looking up if it's possible to install Lionchief 2.0+ (for bluetooth) and I ended up learning that a thing called Bluerail exists but it sounds like a less-direct-install.
Now my head is spinning! I have always had conventional control so I don't know what I like in terms of command control. I suspect I can't lose with a ERR upgrade or Protosound 3 upgrade. It seems like they wind up being a matter of user preference based on what I have read here. I'm just flat out asking what you guys would do in my situation. Mini Commander 2? Protosound 3? Something else?
Other details: As far as having space for boards, I was thinking I could fit a board in a caboose behind the docksider. These docksiders will pull yard duty. One at a coal tipple, one in a steel mill. I also have an older 6-8635 0-4-0 steam switcher, an S2 turbine from 40s (I think), a conventional Lionel RS-3, and a Lionel 0-8-0 with railsounds. I intend to upgrade these locomotives to something that can be command controlled. I have a weak understanding of electricity but I'm good at wiring if I have instructions (meaning I can follow good instructions haha) so I'm not intimidated at modifications if there's information available on what to do.
What does everyone think? Go full ERR? DCS? Wait for a Lionchief upgrade?