Honestly, i can say that i have seen many if not all of the V4.1 posted here and there is even one posted today who gotten from Toro that does not comes with sunken screws. I'm not here to quarrel with anyone and I don't bother arguing with you about this as it does not benefit me at all, i'm just stating the fact that V4.1 does not comes with sunken screw before this.
I don't really bother whether it is sunken or not, it doesn't affect me at all but it is not an acceptable reason to reject it for QC. This is the point.