Why use ENG over TR to control the ZW-L

My experience was when I first got the ZWL . I programmed it as a Tr1. 2 of the 4 ZWL channels on the Legacy remote would read Cab1. The other 2 channels would show the TMCC graph. Being that I wanted to run all 4 channels with the "speed graph" Their was no way to do this in the TR mode.

I then "tricked" the remote by programming the ZWL as Eng1 and then I could go to eng(channel) 2,3,4 and manually go through the menu and make it a TMCC eng and further into the menu XFRMR.

I then went back and reset the ZWL as a TR and all 4 Tracks(channels) now show the graph for voltage on the legacy remote.

Maybe that's why its recommended.

That being said I never did program any engines after that as eng1,2,3,4. So I don't know if that would effect my TR1,2,3,4 XFMR(transformer)

In theory im guessing if I did ,as long as I didn't make an MU in TR 1,2 ,3 or 4 I should be alright, but havnt tried it yet.

You have 99 ENG and originally only 15 TR's (of which only 10 could be accessed because of limits in the CAB-1).  Original TMMC system consisted of the CAB-1 and the original PowerMasters.  The first true TMCC/LionTech command reverse units did not appear for almost a year after the debut of the CAB-1/PM.  PM's can only be addressed as TR's.  All of the later power supplies (TPC, PWC ZW and the new ZW-L) allow you to access these devices as TR's or ENG's.  If you had a number of "consists" you would run out of TR's very fast. TR's and accessories usually only run in CAB-1 mode while an ENG could run in CAB-1 or TMCC.

If you define the ZW-L as an engine then you can

build a lashup with Train Link and change control

of channel A,B,C,D on the ZW-L by pressing just one

of the buttons at the top of the Cab2.

Thanks everyone for your help with this. It looks like using the ENG is best. I will be purchasing the ZW-L tomorrow and set up this weekend. Sorry for the delay in my response I have been out of pocket for a while.