Now, that's a good logo.
I'm liking your latest revision a lot better than the first 5 options; it's a lot cleaner and easily recognizable.
Logos are symbolic representations (where features get simplified or exaggerated to facilitate recognition).
As long as the creative juices are flowing, I wouldn't abandon the "hammer" tag line idea just yet--Your brewery is named YellowHammer, after all.
I don't recommend it being used in the context of "Let's get hammered (i.e., drunk)", as you've mentioned, but, rather, in more clever twists of common expressions. For example, husband asking his wife or carpenter asking his co-worker "Have you seen my hammer?" or "Try this Hammer..." or birdwatchers (wearing roll tide t-shirts) looking through their binoculars at a YellowHammer (beer, not bird), and exclaiming, "Oh, look! A YellowHammer!" I'm sure you and others will come up with something far better. Better branding and taglines, along with a great product, will sell more beer.
I understand and respect your desire to promote responsible drinking, but you are not responsible for the drinking habits of others.
Young college kids and drunks looking for a cheap buzz won't be as likely to inbibe craft beers due to cost.