How long during the movement are you supposed to be thinking: "elbows forward?" Should it be all the way to the near top until you snap your elbows into lockout?
And I'm confused with your statement saying that elbows forward of the bar should get the forearms vertical as it drives the bar up. Obviously you don't mean the forearms should be perpendicular to the ground, because the forearms slant with the elbows forward. So what is meant by 'vertical'?