Yes, you should do this.
And the bacon. The bacon grease needs to be cooked into the greens. If you want crunchy bacon topping then fry the bacon first in the pan you're gonna cook the greens in and then add anything for the greens to that grease.
But, it's good if you cook some onions in that bacon grease before you put the greens in.
And by all means, use salt pork or ham also. If you've got any ham, even canned ham or lunch meat ham then cube up some and let it simmer along with the greens.
And always put a little vinegar in your greens. Cuts the bitter. And makes 'em real real good.