I have been watching lately Icon playing several top players with Twitch, to find out more things concerning the issue, estimation vs maths.
Just to mention quick. Icon plays the drives & approaches like the most of us I believe, moving the aim and estimating the hit power, but when it comes to putting...the putter pal is there and he masters it in great style! & with miss-dinging the shot.
In comparison, mags, using a calculator on every approach (I think) and I suppose in the putts too. I can imagine mags uses the avatar movements to accurately calculate the putter power/distance....like the 99% of the good/top players do.
Don't get me wrong, I have nothing against any of them, it is the way they play & that is why they are the best in WGT :-), very valid tho very mathematical in my opinion.
Eric