This would defeat the "Load Sharing Technology" used in MU'g locos. They most likely would not be speed matched and eventually damage gears or strip drive shafts etc ...

Once you MU the set, it is stored and always there until you "unlink" them. Just have to select the lead or any of them and the MU should show up.

Can I assign the same loco ID to multiple locos?

eg. say an ABA set of F units, all programmed to a single Icon on the HC?

I may be wrong, but I think the Free Storage means the amount of space on the HC, not the LM. Try deleting the files from the HC. The ULT series of sound files eat up a TON of room. My HC regularly shows around 2-3% of Free Storage and I'm constantly having to juggle which files are needed for which loco install.

Got it all set and working the way I want it. Looks like I was barking up the right tree with my work around, just the wrong branch.  

you can buy the entire full wave bridge in a single small package to save space... it will have the ~ and + and - markings

the cap might help flicker, if it's big enough (mfd capacity)

but remember you need to calculate a current limiting resistor since the LEDs by each run at about 3.6 volts and 20 ma max...

Since you say it works at least in one direction, you may have that done already.

So the full wave bridge in this case is used to provide a continuous output polarity, regardless of track polarity.