I have this issue with straight in shots i cant seem to sort out and actually this occurs in cut shots too but its easiest to explain with straight ins. I have tried numerous things to fix it but still it bothers. So, i line up for the shot, get down, everything feels relaxed and i start my feathering, now the problem is i see my cue being tilted to left in my vision, not by much but still enough to notice that (im left handed) but actually this is when im stroking straight and center cue ball. I have recorded myself and when i try to change my posture so that my eyes see everything straight i tend to cut the straight in shot to the left and its also noticeable in my videos that when i do line up the way i think i see everything straight im actually sighting to cut the ball to left. I have tried to find a head position where this would disappear but havent found a solution, same thing with stance. So now im at the point i would like someone wiser to say what should i do, i play good already, but i think this is the issue that is now holding me back and it bothers me. Any advice is appreciated.