not numbers but . . .
I don't try to figure numbers or percentages just my feeling for what are the likely results of each shot. If I have a moderately tough shot or I have to roll the cue ball six inches or less to steer it into a pocket formed by two or three balls and the rail to lock somebody into either trying to tie up some balls or a multi-rail kick with the first rail close to the cue ball I'll choose to lock up over 90% of the players I have ever seen. Obviously you don't do it when the object ball will be hanging in a pocket but often the safety is the aggressive shot.
I just want to be the one making the last shot and I want that one to be an easy shot.
Hu
There is a saying in war that no battle plan survives first contact with the enemy.
Having said that, a general rule for me is if I have a shot I can make with a chance to run out I try to pocket the ball. The reason being if you play safe and give the table back to your opponent you might not get out of your seat or if you do you might be kicking at a ball having already passed up on a shot.
You are passing up a shot for the unknown. I'll take the shot if it is a shot I can make. Rarely are the shot and the safe equal difficulty so it is impossible to apply a percentage to when you will do this or that.
I don't try to figure numbers or percentages just my feeling for what are the likely results of each shot. If I have a moderately tough shot or I have to roll the cue ball six inches or less to steer it into a pocket formed by two or three balls and the rail to lock somebody into either trying to tie up some balls or a multi-rail kick with the first rail close to the cue ball I'll choose to lock up over 90% of the players I have ever seen. Obviously you don't do it when the object ball will be hanging in a pocket but often the safety is the aggressive shot.
I just want to be the one making the last shot and I want that one to be an easy shot.
Hu