We found that when using a plow-equipped engine as the road engine on a doubleheader, if you stopped the train with the road engine's nose just off the end of the bridge (about 30 back of where 488 stopped), it was a lot easier to get the engines to recouple. The long shank coupler sticking out over the end of the plow, made the offset between the couplers a pain. Add to that there is a significant vertical curve in the track right off the end of the trestle makes things tricky. I've seen perfectly lined up couplers fail to mate because the tender coupler on the helper is twisted up on the grade, while the road engine is on the flat.