Fledgling sushi chefs spend months (sometimes years) doing nothing but making the rice for the head chef.  If the rice isn’t right, it really doesn’t matter what else you do, you’re not going to be able to serve great sushi.  Too often, we quickly jump ahead to the new thing, failing to get good enough at the important thing.  -Seth Godin                                              

If your 2 lb bowl is wonky, then practice more 2 lb bowls.  All the struggles  that you have making a 2 lb bowl will be amplified when you are trying to throw a 5 lb bowl.