V.E.M. stands for virtual equipment module . If you use the search box >>>>>>>>> you will find many threads on this topic , including an explanation of how it works . So basically VEM is the name of the program and deviation is what it does . Its what makes your shots go long or short and also gives you the results that you get when you hit those bad shots as well .
Now every shot that you take will not be deviated or altered by the games program . Can your account be targeted by wgt , yes it can but its not . The amount of deviation that you get will be based upon your skill level , and that is determined by your average . The lower you play your average down , the more deviation you will begin to experience . Its not your stats that determines the amount of deviation , again its your average .
So when other players try to tell you that you arent good enough to be experiencing deviation , thats a crock . Everyone gets it just at different levels and the better you get the more you will get . But no matter what happens just like the rest of us you will reach either Legend or Tour Legend when you are ready to do so . It will not stop you from advancing , just frustrate you along the way . Play well , have fun and ball till you fall . :-)