Trophy and Achievement hunters, When do you look at a guide?

[Wonktonodi]

zuvuyeay said:
its hard to imagine the serious trophy hunters with masses of platinums don't look at the roadmap first otherwise they might have to redo a whole game for one little thing,how much time can people have

I know for myself there have been games where I wish I had read the guide earlier (needing to replay a huge amount of the game for something small when I didn't even like the game that much, other times I have read a guide and it was too full of spoilers and I wish I hadn't read it.