LCS - ASC question.

No benefit that I've found. If you already have the ASC's wire them up and use them using a SER2.

The BPC is a different story. The new one (BPC2) is very different than the original. It has two groups of four outputs each. The old one had a few different ways to wire it up for your particular needs. In conventional it was good for bringing a train out of a yard and sending it to different tracks using the same power source. In command it's not needed.