well you need training. how would you ever do eye gouge strikes if you never practiced hitting targets ect. my class on college is intro, so we only learn the 1st form and its applications. though we have learned 3-4 of these key spots, and practice fighting against them. after lots of practice (ive taken the course 3 x) i can hit the above target relativly easy. i think because i'm trained in wing chun it is a little simplar for me to apply. why? 1. centerline and always hitting it 2. knowledge of such areas 3. always rotating, moving my body, to hit where i target and want to focus on i can close my eyes, and using my centerline hit a fine line or 1/2inch dot every time on my center line. it involves feet rotation, practice, knowledge ect. so what i'm saying... practice targeting objects, practice on people, spar, train ect... and try learning things that enhance your fighting. there are 100's of dim mak points, i think thats to much. there are some very simple ones to strike, and thats a good thing this one is one of them. if you learn to block, open the ribs up, you can easily strike the point multiple times with a chain punch.