Exactly,waste of money, you have access to a harris so learn the basics, read plenty....you can't go wrong with hollinshead regarding harris hawks......harris hawks give the impression of being very forgiving, but if you don't get things right, they can show it in all kinds of subtle ways, hollinshead put this into words brilliantly.
The old classics are good, but don't get too bogged down with stuff like 'glacier', different time, different class, they'll make you think you need thousands of acres & everyday to hunt, like they did.....but yeh read as much as possible & make your own