VEM exist....
Somewhere there is a thread which talks a little about it. Basically, as I barely understand it, there are algorithms that attempt to simulate human error. Sometimes a crap shot, or a total ding miss, actually is dead on and we think, lucky as crap...other times you do everything right and everything goes wrong...
On a different note about VEM, there is a video on youtube where a member explains how to "confuse" the VEM and make perfect putts everytime...yep....!!! So, I tested it out, it involves before putting, spinning your player around clockwise, 360 and then counterclockwise. You then line up your putt, if little to no break, ignore break, and if break, adjust for same, and "hit the ding"...perfect putt, every time. He drops 50 and 60 footers to prove the point..so...
I went to Wolf Creek front 9 to test this theory. On #1, I was on in 2 with a 28' putt. I did as in the video and boom....dropped for E. Then on to #2, big tailwind slightly right to left and I drove the green 38' from cup. I do as in the video and BOOM, ....dropped for an E...OMG< I think, this works....The next few holes I made birds but they were short putts and then the wheels fell off.......no more "confusing the VEM" lol....
So...VEM is crap but it does exist!!!! IMHO