SimonTheBeetle: Anyone who plays real golf knows that initial break breaks less as ball departs with force and late break breaks more as its speed dies off.
That's the quandry with foot breaks-how hard you hit it determines how much affect it has on the line. Generally, the longer putts where you have to hit it harder tend to be less affected by foot breaks because you're powering through them.
Odd bit of experience to relate here. I've found that long, long putts with confusing views and lines are best figured by a.) getting the speed right and b.) dinging the default aim.
A cockeyed theory I came up with a while ago (my perception, my reality-lol) told me programmers weren't about to map greens a mile away from the hole so they program the dings to go in if the speed is right. LOL. I'll be damned if it doesn't hold water because it's a guaranteed gimme if it doesn't drop. :-D
p.s., Not knocking the programmers, I'd think the same way. You ain't spota be there in the first place. :-)