When writing about former routes, I encountered a proposal of the Capitol Limited and Southwest Chief being linked in Chicago. This would've given service from Los Angeles all the way to Washington on one train. I don't know if that ever was implemented or it was like the Skyline Connection of 2000?
The only coast to coast train was the Sunset Limited from LA to Orlando but that was lost since Katrina.
I know that delays are certainly common in LD trains and the longer the train the worse the delays will get. But could any coast to coast train be feasible? Would you rather LA to the Northeast (NYP or WAS) or to Florida (or both)?
The SC/CL would be the fastest way to get from the West to the East but the connection time between the SC and CL east would not be practical (3:15 to 6:40pm). A SC/LSL might be more feasible (3:15 to 9 :30pm) and would give LAX/NYP and LAX/BOS instead of LAX/WAS. I might be interested in SC/LSL and CZ/CL (or SC/CL and CZ/LSL). One baby step might be combining either the LSL or CL with the Texas Eagle and giving direct service from the East Coast to Dallas and San Antonio (and St. Louis).
The debate of longer LD trains and longer delays vs. having to connect (and possibly miss connections) will probably continue the rest of our lives. But after my experience with missing my connection, I would almost always trend to fewer connections required.