Note he does not touch another ball when shooting. Take it as an ultimate grade for this drill First allow yourself running into the balls, next don't.
correct, Eckert mentioned that too, and even said no jump shots. His instructional is for amateurs and a bit advanced players so he wanted to be detailed. I decided to omit that because we know jump shots are not they way 14.1 is supposed to be playedJoe Tucker covers this drill very well in his "Guaranteed Improvement" workbook & video. In his version, the cue ball can't hit a rail and no combo's (or Caroms) are permitted.