Specifically for putting.
On the back of the Pre-shot routine thread, I see plenty of folk where I play using an alignment line/mark on a ball for lining up their putts.
I have a tendency to aim too far to the right when I'm putting so I'm considering a adding an alignment mark to help me.
Is adding an alignment line a help or a hindrance?
Is it purely a preference thing?
If you want to draw one properly here is something to help.
http://www.ebay.co.uk/itm/GOLF-BALL...hash=item51da997e31:m:mYz6oKKE-mFG6rpaGnuai-Q