Luther Lassiter once observed: "The day I stopped missing easy shots was the day I realized that no shot is easy." If the best ball pocketer of all time felt that way, that's good enough for me.
In short, take every shot seriously, even the one you seem to think is easy.
Failing to execute easy things (in pool and in life) is usually a result of "letting your guard down" and/or "mistakenly allowing your concentration to drop." In pool, a really good preshot routine is the easiest way to minimize the danger of these threats to your shot execution.
Lassiter knewed what he was talking about, Stu. The further along I get the shots seem to remain just as hard because I am striving for ever more accurate cue ball paths and end positions.
Lou Figueroa