I diagramed my trackwork using Atlas RTS. Sine it is an Atlas product, all it offered in the way of track was the Atlas brand. So I used Customline Code 83 #4 and #6 turnouts. Now, I am thinking of using the Walthers/Shinohara DCC friendly #4 and #6 Code 83 instead of the Atlas ones. So the question is: Should the turnouts be interchangable? Is a #4 a #4 across the board (yes, I know the Atlas #4 is actually a #4.5)? I have not layed any track yet, but I don't want to get into trouble when things don't fit right. Anyone have any thoughts?