I see it more often than you'd think. Obviously, not be very good players, but players who are better than "novice." You can often see them get to the point where the "third ball" is now the trouble ball and wonder what the hell they're going to do now.
I didn't say play position 4-15 balls ahead. I said play three ball patterns, precisely what you're saying. However, to state the advice as thinking three balls ahead, to someone who needs said advice, is not as helpful as telling them to play three ball patterns and think through the entire rack. Literally thinking three balls ahead will get you into trouble.
I think 3 balls ahead to figure how to pocket trouble balls and break up clusters.
Thinking through the entire rack before that is like a puzzle with pieces missing.
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