Yes but I would rather it die now with nothing on it than when I have 2tb of data, and this is just to check for the early fail hd
I don't understand. The hard drive might survive the stress-test, only to fail 6-12 months from now. Why not just forget the stress test, so that the hard drive might last longer? Meanwhile, you have everything backed up on a second hard drive. That's what I would do anyway.
Drive fail more often when new.
So for a drive in heavy use the failure rate is around 11% in the first 3 months. But only around 1.5% for the rest of the first year.
After recording the behaviour of 100,000 real hard drives in a study Google suggested this,
"One possible explanation for this behavior is the survival of the ﬁttest theory. It is possible that the failure modes that are associated with higher utilization are more prominent early in the drive’s lifetime. If that is the case, the drives that survive the infant mortality phase are the least susceptible to that failure mode, and result in a population that is more robust with respect to variations in utilization levels."
Meaning that if your drive doesn't immediately fail (infant mortality) then it is much more likely to have a long and happy life. If it does fail then better it A) fails while under warranty and B) Fails without loosing any important data.