At the Sands in Reno perhaps in '85 or '86, I was watching Efren in the practice room. He was practicing Rotation. Another player approached and was barking for Straight pool. Efrin ran two racks in rotation and paused to ask, "Are you sure you want to play Straight pool?"Efren was the first guy I ever saw practice the 15 ball ghost. He would throw all fifteen balls all over the table and take BIH. I’m guessing he ran out about one in three tries. I saw him do two in a row a couple of times. Damn him!
In his first visits to the USA he brought skills that the American players couldn't approach. Most noticable was his billiards skills and absolute control of the white rock.