Try this.
Add or subtract 1 foot for each inch the putt goes uphill or downhill.
Take that number and divide by
Slow Green divide by .9
Standard divide by 1.0
Fast divide by 1.1
Very Fast divide by 1.2
Tournament divide by 1.3
And use that number as your putting distance.
Inside of 10 feet it is different, though, you want to hit it a little harder than that, and on very close putts you can ram it in.
Now as to how far to move the meter. On each putting scale the avatar (you) will move the putter back a certain amount of times, for example on a 30 ft scale there are 5 movents so each movement represents 6 feet.