Can't get off the train... You can ride the first Whittaker train up and then hike down from Whittaker to get them meeting. Me I know a fellow at the Whittaker campground and just parked at his camper and hiked up to the lower switchback then the upper.
Danny might if he is pushing. You kinda just got to get lucky there as Shay 6 would need to go down from some unknown reason on a weekend... Might be better to just talk to Brad on 5 or ride the first Whittaker up and hike down for the meet. then hike back up for the second train back down.