I think one thing that can help is variety in the forms of the bukkake. We all like different things. If there's too much emphasis for example on swallowing, it may displease those who aren't fans of this form. I think there should be a good rotation from one form of bukkake to another; i.e. swallowing to facial plastering or the girl bukkaked being on her knees vs lying flat on her back. They can also do other things to spice things up like creating a fuunel around a girl's face being bukkaked (this was only tried in AB 13 with Sabrina Jade). One thing also that they should do and that they used to do in earlier bukkakes is to interview the girl before the bukkake. Another thing I'd like to see is three bukkakes per volume produced instead of two that they're doing now (in earlier AB's, there used to be three). In earlier bukkakes too they used to have more guys (80-90) compared to now (around 50). All these can impart variety to the series which is important to continued success.