I want to thank the forum for the info on Lionchief+ engines that I have absorbed here. My first LC+ loco arrived, a PRR Mikado, and it functions beautifully. I have it pulling a long(ish) Ringling Bros. Circus train, complete with heavyweight passenger cars, and sharing a track with the MTH P2 PRR passenger set, with additional cars from the LC Broadway Limited set. The fact that both of these engines have superb speed control makes sharing this not very big loop a pleasure.
I will certainly be adding LC+ to my layout in the future. The features are superb. You folks were right.
Finally, a plug for forum sponsor Mario's Trains: the price was great, the shipping free, the product well boxed and the service spot on.