Downhill putts always break more, if there is any break, than flat putts because of less pace on the ball, and uphill putts break less because there is more pace on the ball.
For what it's worth, I often look at the line of a putt using the Chip, Pitch, Flop green display because the column of that display is usually centered on the hole.
Though we can, I don't unlock the putting grid.