Teedaawg:sorry YankeeJim, in advance for the stupid question but, it seems like the top one is the easier one to me no???...why would you even use a 50 meter for such a putt anyway???
The only stupid question is the one you don't ask, Tee. ;-)
The top swing has a very long backswing and you have to wait and time your ding. This brings jumpy finger and meter issues into the mix.
When you use the avatar move way of putting you give yourself an exact way to gauge distance. Keeping the back swing short doesn't give the meter time to speed up like people are complaining about and makes it easier to ding because it moves so slow.
The first swing is an estimate based on your experience, Putter pal, tape on the screen or whatever. The second swing is exact and the same every time making it very easy to learn how far the putt will go once you learn the scales. In my case above I use the 50 foot scale for putts 12-16 feet. Try it, you'll be surprised how smooth and true the ball rolls. Heh, I use the 300 foot scale for 40 foot putts-it's almost the same swing as the one for the 15 footer, just on a different scale.
Nivlac's Putting Tips under the FAQs goes into greater detail and this method isn't for everybody. I've just been doing it for over 2 years.