I don't normally print on glossy RC, but I picked up that box by mistake (!). However, I think it really works with some images.
HIE isn't that hard. I normally just put a red 25 filter on the lens, set the ISO to 320 or 400 (sometimes 200) and meter. It it's something I think will be really good, I'll bracket too. I've noticed that the images I like best usually have water, people, or old buildings (i.e. old wood) in them. If you only have one roll of HIE, there's not much you can do either way, but you might try some other infrared film (I like Efke IR820) and shoot a few rolls with it to get an idea of what kind of images you like with infrared. Then, make a plan for your HIE and go out and shoot it!