As I (and the others I recommended to you) have said over and over, nothing the cue ball does extends its own contact time beyond normal throw - extra friction between the CB and OB exactly at the point of contact (usually a spot of chalk) does that.
No skin off my nose if you don't want to learn about this stuff - but other readers deserve the facts.
pj
chgo
Then please provide facts other then just spouting off with “it is known” bullshit. Dirty balls don’t just skid themselves, or else every freaking shot ever would skid. You're trying to lump a very specific action into a very general sense of things.
First off, I’m not confusing throw and skid. A skid has a visual and audible difference. A ball is leaving the playing surface in the cb->ob collision. Slo-mo has confirmed this many times over. You’ll also never get a skid off of a slight draw shot. Only when using slight stun/follow/roll through. Like I keep saying, an improply stroked cue ball is what leads to skids. Knowing conditions and proper striking of the cue ball will eliminate skids.
Edit: to make sure we are all on the same page. All the balls are to be considered of same size and weight.