Miners Trick with Felsteel

Here's a quick little trick I have found decent success with as a miner. Get some Fel Iron from Helfire Peninsula - it's all over. Make Fel Iron Bars. Now, hit the AH and look for Eternium Bars. It takes 2 Eternium and 3 Fel Iron bars (4 Eternium ore and 6 Fel Iron ore) to make a Felsteel Bar. I usually find 2 Eternium bars for 3-4 gold. So, I pay the 3-4 gold for it, smelt a bar of Felsteel, and turn around and sell that for 12-15 gold! It's a quick trick, very easy to do, and as long as you aren't overpaying for the Eternium, it's always a profit.