I come out of the 025 card, in my case, I feed my monitor controller, Protools 2 track input and a NTP Plasma/Phasemeter using a three way Y splitter.
The 025 card buffers: LF, RF, RB, LB and then makes Left, Right and Mono feeds.
External to monitors on the console is great for Two track Tape, Dat.. but, modern converters will be to hot, and you'll need to pad all the inputs.
in 2014, you need to switch between SSL and digital sources as part of the workflow.