Got my Alco PB unit back from 3rd Rail today. I have to say fantastic service and commitment to their products.
Tested and runs fine. I'm really glad Scott chose to do the B units independently powered with sound, smoke, and lights. This is definitely the way to go for all future diesel units.
Once I have the time to paint the trucks 1948-1955 gray they'll be off and running just like the prototypes did across the UP's Kansas division.