If you route multiple channel strips to an aux track, (i.e., create a submix [or is it more properly called a subgroup?], or create a summing track stack), and some of the individual channel strips utilize post-fader sends for effects like reverb, then you hit a problem when trying to adjust the level of the submix in the overall mix: When you change the fader for the aux track (or the master track in the summing track stack), you change the volume of the submix but not the volume of the effects send. So, for example, if you lower the fader on the submix, then you lower the volume of the submix but the reverb on the individual channel strips will sound more prominent than it did before. As I understand it, the solution is to either stop using effects sends...or use a VCA group on those same channel strips. My question is, how precisely do you use the VCA group to avoid the problem described above? i.e., after lowering the fader on the aux track for you submix, would you then also lower the fader on the VCA? So would that be the workflow: after adjusting an aux fader, make a similar adjustment on the VCA? It sounds a little clunky, which is why I'm asking.
Also, can anyone provide some real examples of how you use aux tracks and VCAs together when mixing a project? In my amateurish mixes, I use a summing track stack for guitars and a summing track stack for vocals, and I use post-fader sends for reverb and delay on the individual channel strips (and might want to experiment with parallel compression in the future), but I have not been using VCAs.
Lastly, I understand that folder track stacks are the same or functionally equivalent to VCA groups. If this is true, then are mix engineers who use Logic somehow employing both summing track stacks and folder track stacks for the same channel strips to deal with the problem described above?
Note: there is a high chance that I am misunderstanding something fundamental here because I'm relatively new to this. I do read the manual. Many thanks!