making my first chile verde
I guess it would depend on what you're doing with it. If it's going over something light like fish, or even over some freshly made (not baked) enchiladas then I like the salsa verde to be pretty straightforward- no cumin. I'd add cumin to something that is cooked for much longer, like a green chile stew- and even at that I don't add as much as most recipes I've seen, just enough to add a certain quality but not so much as you'd be able to pick it out right away.
If this is a recipe that doesn't take too much effort to make (I"ve seen some guys whip up a very fresh salsa verde in minutes) then it may be a good opportunity for you to split the batch and do it both ways to see which one suits you.