Had some fun reading Kranicki's book again yesterday to see what I might glean or better define. Here are some takeaways. What do you think?
It is hard on hits thinner than half-ball to bring the vision center over the cue ball and instinctual aim or an aim system compensates for sighting on concealed targets, as on the far side of the cue ball (I agree)
It may be helpful to triangulate the cue ball’s bottom, center of mass and the “apparent” absolute top, as the top moves in perception in the full stance, to align center cue ball (this may sound like overkill, but it is extraordinary how many students swear their cue tip is pointed at dead center when it isn’t)
A ball’s equator tends to be lower on a ball than perception tells you when in the full stance, so the contact point needs adjustment (I agree, for most students)
The equator tends to bend into a smiley face shape when in the full stance (I can see that, weaker players tend to cut balls too thinly as one consequence--better players who miss tend to miss too full)
For right-handers, Kranicki suggests pivoting the right foot at a given angle can bring vision center over the shot line so find a personal foot angle, so the head responds to the turning torso without straining the neck to sight the shot, and he also further recommends sticking the left foot out straight, parallel to the shot line (I know some players do these two moves and they work for them)
Moving the head laterally while assuming the stance leads to an aiming disaster (I agree beyond the SLIGHT natural lateral movement that comes with moving the torso vertically--Kranicki's point implies placing the head on line first, then lowering it straight down or nearly so while assuming the stance--certainly what many pros tend to do--amateurs do very strange things instead, like lay the stick near-flat on the cloth than wrap head and body around it awkwardly)