That is my question...but it may be getting confused with the different poll question.
For example: In the below layout after the break, I'd estimate my runout chances at 70% for stripes and 50% for solids...with both having potential for a big increase/decrease considering break-out success This percentage varies throughout the rack depending on the break-out success, shape & movement of balls.
Stripes has a break-out angle on the 15 right off the bat...but solids would require following the cue on the 4 ball for shape on a thin 2 ball. The longer that you wait for the break-out, your running "Run-out percentage" would decrease.