I'd not really considered connections or which trains which run in which track/tunnel once it's finished(!)

https://en.wikipedia.org/wiki/Trunk_line_2_(Munich_S-Bahn)#/...

> zwei Stammstrecke will make it horrible long to switch from platform 1 to platform 2, through elevators 40m up + down on each side, forcing you to go completely upwards, and then going down again

Are the connections between the faster and the slower lines going to be equally bad at all five connection points (Laim, Hbf, Marienhof or -platz, Ostbahnhof and Leuchtenbergring)?