Is a miscue a foul if it results in multiple hits?
A miscue is a bad hit resulting from the cue tip sliding off the CB during tip contact (e.g., see HSV 2.1 and super-slow-motion follow-shot miscue). With a normal shot, the cue tip grabs the CB and doesn’t slide at all relative to the ball (e.g., see “good hit” video). In the current rules (see WPA WSR 6.16c), a miscue is a foul only if it is intentional. HSV 2.1 shows a good example of a typical miscue. HSV A.13-A.20 and A.98-A.109 show many more examples under different conditions. Here’s another:
With most miscues, the tip slides along the cue ball, and the tip, ferrule, and/or shaft make secondary contact with the cue ball. The secondary contacts might partially explain the slapping sound you hear with a miscue. Normally, multiple hits on the cue ball results in a foul; but in case of a miscue, the multiple hits are not considered a foul under the current rules (unless the miscue is judged as “intentional”). For more information, see “Rules – Part V: miscellaneous fouls” (BD, December, 2009) and:
One case where a miscue should be called a foul is when secondary contact clearly affects the shot. The following videos demonstrate both unintentional and intentional miscue fouls:
Here is a good example where the miscue might not be “intentional,” but it should be ruled as a foul, because secondary contact is obvious:
As demonstrated in the fouls video above, an example where a miscue is a foul is an intentional “scoop” jump shot. And another is with the classic tip-lifting double-hit-avoidance technique that was once allowed under older rules where you place the tip under the front edge of the CB and then lift the tip straight up, creating a slight glancing hit on the CB. This is a foul for two reasons. For one, it is not a legal forward stroke into the ball. Secondly, it is an intentional miscue (since the tip is sliding across the surface), which is an unsportsmanlike conduct foul.
Actually, an argument can be made that all miscues should be called as fouls. For one reason, miscues can create scuff marks and other surface damage on the CB (for an example, see: Is a Pool Ball Smoother Than the Earth?,” BD, June, 2013). Also, miscues with draw shots can easily damage the cloth. The following video of an elevated draw shot clearly illustrates why:
And here’s another, with a highly-elevated jump-draw-shot attempt:
The current rules require a single, non-prolonged, forward-stroke hit of the tip on the cue ball. All miscues involve the tip sliding along the cue ball (which can be considered “prolonged contact” and a non “single hit”), and most miscues involve secondary contact with the tip, ferrule, and/or shaft. A miscue is also the result of either player error or intentional, unsportsmanlike play. Also, the “intention” of the player might not always be obvious (when trying to determine if a miscue is “intenional” or not). However, the current “intention” of the rules is that only intentional and blatantly obvious “secondary contact” should be considered a foul. The shot in HSV B.28 is an example. Another example is where you miscue on a follow shot, and you trap the CB under the cue … this embarrassing and unintentional miscue should also be called a foul, because there is obvious “secondary contact.”
One potential issue with making all miscues fouls is: sometimes a miscue can be “late” or “partial,” where the hit sounds funny and the CB does not quite go in the expected direction with the expected amount of spin. But this type of shot is not very common, and only an obvious miscue would be called as a foul (but this still might require judgement at times).
For more info related to miscues, see: