75 was stated by me in another
thread about dust before the patch release. The GG is less precise though technically accurate
about 80
about 60 plus
70-80 hex visibility
There are variations but the effect has evolved over time but the POINT is the visibility has to be set high to get the effect and you took the last quote out of context. That write up was regarding changes to the visibility given out typically to generated battles.... the mention of dust was only that we also raised the visibility where it would appear.... "....have been adjusted upwards by 10 hexes......"
I've give you this though......at least YOU read the damn thing. Few bother.
Both GG's ( in my master game ) now give 75 as the turnover point