This is the way. I'm a little bit spoiled and just use preolled cones. But you can still fuck it up. I have real good luck with a 10-12" poking stick, sitting it inside the cone, and then pouring my bud into the funnel. This way the poking stick is preventing the bud from falling until I pull up on it and twist letting only a little bit of bud at a time to fall to the very bottom, tamp down on the bud that fell, and repeat 4-5 times depending on the size of the joint.

Packs it evenly and you don't get that weak spot right after the filter where it never gets packed down.