Submixing with Aux's ....quality loss?

[mesh]

Hi All,

Just wondering what people experiance was with submixing , say vocals and music into aux's. Does the extra summing cause a significant quality loss?

I am trying to find a good way to get some groups happening. Mix Groups are a bit of a pain for two reasons, as you build you mix, how do you add to an existing group? Also , grouping when tracks some tracks have automation mean you would have to right automation to other tracks when you need to trim. I would rather avoid that to keep the fader 'free moving' until I really need to write automation.
The one other issue I have with Aux's is they do not buss like a master fader ie, when the mix gets hot, you can't just turn down the master until it stops clipping. This is a pain.

I wish I could find a way that worked as conviniently as the SSL VCA groups work.

Any ideas?

Ramesh
www.songzu.com