Well, Think I may have found why my Hiawatha was NOT running as it should! Runs very poorly, since DCC decoder was added. Discovered that one of the tender pick up wires broke! Boy, was resoldering things a real chore! Ended up having the axle wipers come off as well. Now, waiting on 5 minute epoxy to dry, so I can hopefully put the tender trucks back together and test run again. If it runs good, I'll snap the tender shell back on. Would love to get another one, that has ESU DCC/Sound already installed!