Practice this TML pattern on your table until each one becomes a known and trustworthy shot.
Reverse spin on the cue ball increases the angle off the first rail only a little bit. It is just enough to contact a big ball in the corner. The ball come back from the 3rd rail with reverse spin, so it only reaches the side pocket at a slow speed.
This is a long way to go to contact an object ball in that corner. With the ball coming in below the pocket, that whole diamond square is well-covered. Keep in mind that the reverse spin at the last rail will dramatically slow down the ball.
The same analysis for the 12:00 applies to this.
Other Sized Tables
For 8 foot tables, the same type of pattern requires about 1-1/4 tips out from center to get the paths shown. For 7 foot tables, 1-1/2 tip out from center is necessary to follow the pattern. The distances on small tables are less, so when the cue ball travels around in a trapezoid pattern, the rail contacts are more distorted.