Engineering Leveling Guide 1-450 is completed now. I am very disappointed with the leveling process. Blizzard seem to have put in cockblocks into every primary profession in WotLK. Engineering 435-450 is a joke, you are forced to make one single recipe because there is no other option. At the moment there is only 2 epic recipes you can craft at 450. I feel like it was not worth to level my Engineering. The epic helm at 440 is nice, but for some of the classes - or maybe for all of them - the Naxxramas drops are better, and Naxxramas is not that hard at all. So again, check out my Engineering Leveling Guide and tell me if you find mistakes or anything.