I taste every week with 9 winemaker, enologist, vineyard type guys and I can tell you that it's pretty rare that we all agree on a wine. Unless it's technically flawed then we all hammer it pretty well.
I think the 100 point scale sucks anyway. Northwest Palate magazine uses a 3 grape scale. 3 grapes is outstanding ( you don't see many) 2 grapes is highly recommended, and 1 grape is recommended..everything else is left out. To think that someone's career rests on the difference between a 90 and an 89 is crazy...and the reason that I'll probably never send my wines in to WS to be reviewed
Steve