Master Faders in CPTK vs VCAs

[soundeditor76]

I'm pre-dubbing using the CPTK. Just wondering what the pros and cons of using a master fader in place of a VCA within CPTK. I am getting frustrated with mouse jockeying volume changes within groups or mixing individual tracks 8 faders at a time. Usually at this point I would start attaching VCAs on my HD system. My thought process originally was to premix until I got to the dub stage and then attach VCA's. If I can create master faders and do essentially the same thing per buss than that would work as well. I realize a downside is not being able to coalesce automation, however maybe the solution is just to follow the master faders all the way through the mix. Is there any sonic difference. I remember years ago there was talk about the master faders and sum buss issues....