I've been using it at 15 ft per avatar movement, but i wasn't sure if it was 15 or 14 or even 13 as different holes gave me different results, so i went to guessing the % on the meter, i.e if i had 90 foot putt, i would go up meter scale in 15's untill i roughly had 45 if this was near centre of meter its "roughly just under 50%, i would then go up a bit till i thought it was 65 feet, and then go for it. Much easier than having the distraction of putter "tax", sorry.pal