After some futzing around with the layout, we have determined that there is some signal anomaly in the main loop that the PS3 engines do not like. They perform as expected on the test bench and on the second loop of my layout. With that, we are going to endeavor a re wiring of the layout and try to determine what is bothering the engines. The amazing part of all this is that all of my trains behave. *shoulder shrug* If we discover something, we'll let ya'll know.
Thanks
Cheryl