I run my layout conventionally using MTH's original hand-held for the Z4000, which hasn't been made for years and years. When it dies I'll probably go to a hand-held throttle on the end of a long cord, unless someone comes up with an aftermarket alternative.
Has anyone else ever had the feeling that each system upgrade (hardware or software) is a ransom or extortion demand? "Buy our new controls or your trains will never run again".
I'm glad I've gotten rid of what little I had of the super computer stuff.