But voodoo is where the fun is at!!
Im no barista (but love to comment on these threads anyway) and I love my "no worries" distribution method.
1. Thwack, thwack thwack while the grinder is grinding. It gets a little over full.
2. Swipe the finger over the top with a few grounds going back into the doser (for the next coffee if its coming up - or for the vacuum when I clean it). Note: no tapping on the bench to settle
4. Pull shot
Rinse and repeat :D