I did and it did not tell you anything except for look at the white patches, it was all talk no show.
Us mere minions, who do it ourselves, and I have to say could have done a better job than you did on that Hilux, use a pressure washer and then I personally use a wire wheel and brush to clear the rest follwoed by another pressure wash. TBH, having done 2 D2's for my Father this year, I would be embarrassed if he then looked at them and saw what the pictures showed on that Hilux, and I did not charge him a penny.
Cheers