Lift if the other lane breaks?

So I was wondering what is the correct action to take if the other car red lights or breaks at the line. Do you just ride down the track and take the default win or do you still go all out and try for the E.T. ?
I haven't been on the strip in over a decade (when I was going to MidMichigan it was before the tower was built) and on top of that I've never run a real race, only T&T. However my current project car is giving me the urge to run 1/4 miles again. I remember being scolded for not "curtsey staging" and that's how I learned what I was doing wrong there. I'd like to avoid breaking unwritten rules if I get back on the track.