When Legends play AS games with TLs and Champions, they see the 13.0 greens. I tell those that ask to putt like a Legend flat or uphill, just sweat the downhill rolls because you can't measure momentum, you have to experience it. I found the same thing applies when putting on those 14.5s if you're used to 13.0-the downhill putts are the ones that get you.
FWIW, I use avatar movements and the difference between 12.0 and 13.0 is one side of the move-past it for 12 and before it for 13. It works that way on 14.5 speeds, too. :-)