Like your first bow, you want your first set of arrows to be cheap. In the beginning, you’re basically just looking for something straight to send out of your bow. Wood, carbon, or aluminum doesn't matter, just get what you can afford. If you have the option, select a spine-class that the charts say should be close for your draw weight, but don’t sweat the details. Trying to tune arrows at this point is futile because as you advance, your shot will change dramatically, and your consistency will improve as well. If you shell out big-time for arrows right off the bat, it’s likely that those arrows won’t even be what you need once you become more consistent. Arrow spine, point weight, and tuning will all come into play, but this stuff only matters after you already have a consistent shot. So, wait before you buy the good stuff.