Efren took up one pocket fairly late compared to the other disciplines. Certainly, by 2003, he was the guy to beat at one pocket. He also took up bank pool a little late and retired without even one Derby City bank pool title.
Though he eked out the all-around in 1999, in the first five Derby City Classics, Efren won 0 9ball titles, 0 bank pool titles, and 1 one pocket title. Any suggestion that he was a dominant all-around player before about 2003 does not hold up to scrutiny.
Yes, the Derby City Classic DID exist in Efren's prime as an all-around player, which would have been 2003-10. His five Master of the Table titles might stand as the record forever, but if there's a guy out there that can get to six, it is surely Gorst.