I'll try.
First, figure out the line from the object ball to the pocket you want. Then walk over behind the cue ball and line the cue ball up with the object ball so you are looking at it straight on. Place your tip in the 90/90 position as shown in the drawing in the original post from the original poster. Now, compare the angle of the cue in the 90/90 position, to the angle of the object ball going into the pocket. There is an angle formed that between the two cue sticks. If you can just estimate what the angle is in degrees, that's quicker. If not, you need to try to calculate it roughly. Now, a 90 degree angle divided into 15 degree segments ( you could use other segments too, it's just a rough approximation) will give you equal 5 slices, or actually 6 aim lines. Once you find the angle you wish to use, say the third line, which would be equivalent approximately to a 30 degree cut, divide the object ball into 6 equidistant slices. Then point the tip of the cue from the 90 position on the cue ball straight at the 3rd line of 6, or just a bit less than the center of the object ball. Set up as if you were going to stroke through the 90 position on the cue ball straight at the 3rd line, but instead of shooting on that line, pivot the cue stick to dead center ball on the cue ball, aim a bit above center and roll the ball at say, lag speed, or maybe half that, and see where the object ball goes. For this to work reliably for you, you need to be able to reproduce an accurate, repeatable stroke. If you strike off the center, you'll be introducing english, either left or right, and that will definitely affect where the cue ball goes, and also impart a different kind of throw on the OB than you expect.
Sure wish I could draw this, but am WEI table challenged
Hope this helps.
Flex
Im with pj and curious whats REALLY going on.
