I'm a total novice where DCC is concerned, so please be gentle with me!
The last time I had anything to do with DCC was in the 1970, when Hornby introduced their Zero One system. While this worked reasonably it did suffer from large chip size, motor incompatibility (Some motors overheated) and high resistance rails to wheel connections causing loss of data signal.
I am about to start wiring my new layout and until now I had only thought about a conventional common return DC system. However, I can see the advantages of DCC - two or more loco's running on same track etc.
If I decided to go down the DCC route what would you DCC experts suggest…
1) Do I buy two of everything - one setup (DCControl system) for the down line and the another for the up line etc or is one control system only needed? If one system how do you control up and down trains together without separate controllers or being a multitasker? My brain only works in 'slow mode' these days, so knowing which loco has what address is mind-blowing to me when perhaps four or more trains could be thundering around the layout on two tracks in differing directions!
2) Would my stock (some early 1990's locos - Hornby, Lima, Bachmann etc) run on these newer systems of DCC ok.
3) Are there still problems of 'loss of signal' due to high resistance connection (wheels to rail) which causes poor performance?
4) What general information - Web based, DVD or book form do you suggest for an electrically sound, but novice DCC beginner?