You said that you have to be 80-85 to get heirlooms. On my first char ever (undead rogue) i played a lot of random battlegrounds and i got the pvp shoulders. It takes time but it was totally worth it :D. And btw great guide.
You can smooth the hard edges of a selection by feathering. Feathering blurs edges by building a transition between the selection and surrounding pixels. This blurring can cause some loss of detail at the edge of the selection.
Figure 3 In this example you can see the results achieved using the dodge tool in 'Photoshop CS3 mode' with the Protect Tones option deselected. Figure 4 In this example you can see the results achieved using the dodge tool in Photoshop CS4 or later with the Protect Tones options selected.