The only issue I have with metal month is its fleeting nature and quickly touching onto various aspects of metal, nothing wrong with that as you can only cover so much. But do you really want to be wasting your time writing about Pirate Metal and metal bands from Syria for example 
Personally from your too many journals, the one that you should be spending your time on is the history of progressive rock one, as that really is truly educational and one of the best ever journals on MB.