FOULS IN POOL ... Everything You Need to Know

[DynoDan]

See the examples in Diagram 2 (and the surrounding discussion) here:

“Legal Fouls” (BD, November 2016)​

For example, the shot at the top of the diagram would be easy with an elevated double hit.

Other examples from Bob Jewett can be found here:

“A Modest Proposal” (BD, January, 2006)
​

Again, I don't think we want to give players a "free pass" to double hit the ball just by angling the cue.

Also, see the following video, showing that the logic (or lack of logic) is similar to the old "45 degree rule" preventing players from hitting into a frozen CB with a less-angled hit:

Luckily, that rule is no longer used in any league system I am aware of. The VNEA got rid of it a couple of years ago in response to the video.

Those ‘big advantage’ situations would be rare, and if they did occur, would be merely your good luck.
Why is it ok to give players a ‘free pass’ to touch OBs, but not to allow double hits?
One typical way to avoid a double hit when the CB is close, is to jack up and draw. The 45 degree issue is merely a vague suggestion, and jacking up at all is verifying that you indeed recognize the balls are too close (even a distance less than 1/2” can still be a legal hit if you pull out your spare shaft). Shooting with a level cue would just be too flagrant a violation of the long accepted rules, and would likely add to those ‘big advantage’ situations.
Personally, I prefer to play traditional ‘ALL FOUL’ rules, and in a perfect world, with thoroughly knowledgeable & honorable opponents. No world like that around here though.