Draw shot on ball frozen to rail: Why does it pull away from rail?

Can anyone explain why when I shoot these two shots with draw the object ball always seems to pull away from the rail? I don't always miss the shot but it always comes off the rail some, maybe an inch, by the time it hits the pocket. If I use high or high inside the ball always stays glued to the rail.

preciseness of the hit. since the cue ball is traveling a long way against the rail the slightest bit off in either direction misses the shot.

If you are using a even a slight downward stroke when drawing the cue ball the cue ball will always jump some. Part of the cue ball is under the rail so as the cue ball comes up the top of the cushion gets in the way pushing it away from the rail. There is an old prop bet I can show you at a later time that's taken from this idea.

I'm not sure what you question is regarding the second image.

I hope this explanation is clear.

Tom

My old partner always made the 2nd example. I always had your problem.
He said forget about the rail or rail first, just shoot it like the rail's not there.
Rod.
P.S. It helped me.

Balls frozen on rail before the side pocket,often require draw to keep them from dipping into the side pocket, causing a bad miss.