The switcher in Stamford is needed to switch MNR trains. To ask an MNR switching crew based in Stamford to haul an Amatrak to NHV some 40 miles down the track and then have to fly solo back to Stamford takes up easily 1.5-2 hours of time which would be better used switching MNR equipment in Stamford. It has nothing to do with the RR's hating each other. And BTW it would make more sense for an Amtrak switcher to come up to Stamford anyway and return the load to NHV where it is based versus having the MNR switcher go out of its way.
I have lived to ride on the M8.
Complete Constant Tension on the New Haven Line ETC: Mid-2018
Complete Constant Tension on the New Haven Line ETC: Mid-2018