I did get the question to Efren in a podcast. The which ball last question got Object ball. Well perhaps I worded the question wrong. Shrug wink At impact would be better.
Experiments in looking at the cueball was started January 2013 and contains over 1,000 posts..
If I remember correctly Jason Shaw was the latest to say he looked at the cueball when striking it. His straight pool high run speaks to the effectiveness of the method.
Lots of background noise and a little good information.
That's an interesting theory there. I'll speculate the short swing/stroke is not looked upon favorably by instructors and coaches, as the line between poking the ball and a short stroke can be thin.
Also a mystery why no basketball player has tried (?) to emulate Kareem Abdul-Jabbar's sky hook, the most unstoppable shot of all time.
The post-up offense is nearly as dead as professional straight pool these days, but there was a 15 yearish period prior where no big men utilized the sky hook.