Using Multiple-Mono Plugins

[DonaldM]

There's so many ways to do stuff in the digital mixing realm, its hard to keep it all straight. I came across a video showing how to use multiple-mono plugins in PT on stereo tracks to apply different EQ to left/right channels, and even mid-side. Just for fun I tried it out on a stereo VI track that had definite left/right bouncing and differences, and it can change the sound dramatically. So, it got me wondering, how often do you guys go for using multiple-mono plugins, and how do you employ it when you use it? Is it something you do on almost every mix, or only once in a while? Just curious how you pros use this technique? Thanks