I know a lot of the pros I see on TV seem to have added alignment lines to their balls and use them religiously; this is something I have never done. The fact so many pros do it should answer my basic question I guess, but it opens some others. Here goes?
1) Do you use and recommend aligning your puts with either an added line on the ball or the alignment line that some balls (Pro V1 for sure) have printed on them?
2) If yes, is it fair to presume that a longer line than that already on the ball may be preferable? How long, full circumference?
3) If you use an alignment line, how? i.e. looking for recommendations for actually getting it lined up right. I'm thinking trying to squat directly behind the ball to line it up to the spot you would like to target? (The hole if no break.) Do you use both eyes, or try to one-eye it with your dominant eye like a gun sight?
4) There seem to be various tools/gizmos for adding an alignment line. Recommendations for something easy and sturdy?