Watch the 3 part thing that Mark Wilson put out, your arm is very close to your body and the wrist in inside the elbow by quite a bit.
Look at this screenshot, every part of your aiming is pointed in a different direction. Wrist is way tucked under the body so you have this large angle the joint is moving on, head and eyes going one way, cue is pointed another way. From this angle, your chin, and nose should be centered and pointed in the say way the cue is, but it's going to the left of the screen while the cue is pointing to the right.
Looks like you need to adjust your whole body stance so when you drop into the shot you are not so side-ways, move your feet and maybe switch how your hips are set to the shot.
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Here is a good example of the technical "right" lining up on the shot, elbow, wrist, head, eyes, all pointed the same way. Not all players are this even, but this is the perfect technical stance barring any adjustments needed for body build and eye dominance.
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Here even though on this shot SVB is a bit not centered with the head, everything else is perfectly on the shot line, eyes, elbow, wrist, fore-arm.
The cue can do nothing much except go straight with that stroke.
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