Real-Time cutting and trimming

Others may have different approaches, but for me it's a bit of a hybrid thing (and admittedly I don't do a lot of multicam work). The first thing I do is sync my media up in a timeline, then I'll clean things up and if there are obvious areas to cut out I'll do that. Then I start my multicam edit, which is essentially a rough cut on a first pass. I may do a bit of trimming and polish as I go, or you can just do a polish pass later where you tweak edit points, adjust some camera angles, trim for content, do your scaling, etc.

A couple other notes/tips. You have the option to flatten your multicam sequence, which essentially creates all the edit points on your original video so you have a sequence of your original clips lined up. There are certain situations where you'd probably want to do that, and there are other situations where you may want to leave your main edit as a nest so you can go back and change camera angles if you need to.

If you need to do color grading or any sort of work that effects the entire clip or track you can either do that inside the nest, or you can apply your effects to the master effects of the clip (for example, if you're color grading and want one clip to have the same grade no matter how chopped up it is, you can apply that color grade to the master track. You could also do the same thing with scale if you knew you had to scale everything from one camera by 125%)