Here is a schematic of my 4 staging tracks.  I am preparing to wire them.  I understand there are a variety of possible approaches I might use.  What I want to achieve is to set the turnouts at the end of each staging track to the proper orientation and provide power to that track only.  I want to do this with the simplest approach using DCC or not. 

I have several Athearn RTR engines that I installed TCS decoders in but lost track of which ones were installed.  Is there a way to tell without opening up a bunch of engines to found out which have decoders?  If I have JRMI on a computer connected to a programing track using the Loco Buffer, would it tell me that info?

Other question is I have some Tam Valley Hex frog juicers and the literature recommends wire ranging from 22-26 AWG to the frogs.  As it happens, I have a bunch of stranded 20 AWG wire on hand, would it be ok to use that instead to the frogs?

How do you wire the Yard Master hand controller for block control using Atlas Controllers and 2 power packs ( one as ac power source)

Thank you

I have a NCE Powercab and a Cab 06p throttle.  I am an older guy and I prefer the knob on the Cab 06 as opposed to the thumb wheel on the Powercab.  The problem I have is that in order to get the nice slow speed and smooth control on the CAB 06p that the Powercab throttle produces in 128 speed steps I have to limit the speed of my locomotives by setting the CV5 to a low number.  This is because the Cab 06p knob has limited travel since it has stops at both ends.  So my question is, Since the CAb 06e  has unlimited knob travel can it be set to 128 speed steps and pro