Interesting observations and comments fellas, thanks.
Larry, I've had my set for about a year and bought it (the ABA) here on the Forum. The K-Line cars were previously purchased from Doug (L.O.S.) a couple of years ago and I picked up the powered B unit somewhere since. Have not actually operated the full train together as yet. Hopefully, all with be well with no issues as Norton suggested.
J Daddy, sorry to hear you've had problems with them sir. Had not heard this before. I'm counting on a smooth run!