>I do challenge the thought that blanket speed policies for a specific territory or locomotive type were based on the possibility that a certain kind of wheel or other hardware was in the train somewhere or not.

Never spoke about a territory nor a locomotive. However, I did speak about the cars in the train and their effects on the max speed of the train, which I believe includes the locomotive.

>> I haven't said specifically how your favorite RR would inform you of restricted cars in your train nor what the speed limit might be, only that they would do so, particularly after a problem became recognized.

> BUT, there had to be some way of doing that, did there not?

That's precisely what I've been saying all along.

>The ban on interchange cars is not in question, although I do wonder how and why WP would accept such cars in interchange decades after the ban went into effect.

The interchange point was out in the sticks, so to speak, but they eventually put a stop to it.

> > My original point was that regardless of the top speed of your favorite steam engine, you would not be permitted to exceed the speed limit of the slowest car in your train.

> Never questioned that or claimed otherwise, now did I?

It certainly came across as though you were.