I am bringing this back from the archives because I had might have some problems with the way I am seating bullets.

Correct me please if I am screwing up....but when I seat my bullets I run the bullet up the die and hold the brass to the back of the shell holder with my finger. I run the brass up half way, spin it, and then run it up the rest of the way while holding the brass to the back of the shell holder. Could this be a potential problem? Is this a big NO NO?