M II A II R II K
Senior Member
The problem with "dipping down" is the radius of curvature that is needed to complete the "S" turn. With a station at Bay/Wellington, The nearest downtown DRL stations on Queen would be at Sherbourne to the East and Peter to the West to allow the line to "dip down" - and this also assumes you are deep enough to go under any building foundations in your way.
Come to think of it, it would be better to have the station north of King to cover more area when getting off at the station, perhaps have an Adelaide Station around Bay with underpasses to walk to Union Station and up to City Hall in the other direction and have the E-W GO routes pass through there as well. Then to the west the next station would be Osgoode, and to the east have a station at Church and Queen with walkway transfer access to Queen Station.