Player plays with a line marked on his ball to help with putting / swing alignment. Whilst it's fine to line up the ball to intended path on green or on a tee, what is the ruling in the following three cases:
1) When player lifts ball in order to check if ball is unfit for play (Rule 5-3), if fit to play and replacing it, can it be aligned?
2) When replacing a ball after being asked by a competitor to mark your ball (off the green) as it interferes with play (Rule 22-2)
3) When replacing a ball after having lifted it to identify it (Rule 12-2)
These rules state that the ball must be replaced but my guess is that placing it it such a way that the line on the ball is aligned to a specific point still fits within the letter of the rule.