That's a good question...I'm not sure if triggers with multiple faces are better/worse performing than the head/body turner behavior. In general if it's in a rig, CH tries to have it ready for use, whether that's hidden in a trigger, behavior, or otherwise, so my guess is it wouldn't save you that much.
For Trigger use, you may be already doing this, but are there ways you can combine multiple groups/layers into triggers to save keys and make life easier? For example, you could make a trigger called "1" and drag all your left profile content in there, and that way pressing "1" will always trigger all your left profiles, no matter what view you're in. So like sometimes I've had three body views and want to trigger a pointing hand position in the right arm, but I can add all three pointing artwork latyers into one "point" trigger. Then I know that my character will be pointing no matter what view I'm in.
... View more