Corey Deuel has been credited for creating the "bird break" (soft break), which spread like wildfire at the 2007 World Pool Championship (WPC) in Philippines. Everybody was doing the bird break. Because of a bird-break perfection, the balls spread out like a flower, making it an easy runout.
Incidentally, if you've ever been to a carnival that offers a stuffed animal if you run 3 balls on the small pool table, this is the exact break to use. My pool buddies and I used to go to the Montgomery County Fair in Maryland and win big stuffed animals at the pool table. We used the bird break.
The finals that year was Daryl "Dazzler" Peach v. Roberto "Superman" Gomez. After this 2007 WPC tournament, the three-balls-must-pass-the-side-pocket rule came to the fore. No more bird breaks.
Listen to the commentary here at the match between Daryl Peach and Francisco Bustamante. I think that's Pat Holtz in the commentary booth, but I 'm not sure who the other commentator is. They talk about the soft break is being used.
Break by Francisco Bustamante.
Break by Daryl Peach.