I built this today and am in love. I bought a non-Firestone liquid ball lock post and ended up needing two adapters (I didn't see the post about forcing threads before the purchase). I ended up having to combine the A-176 and A-155. The Home Depot folks may get confused by those numbers as...
My wife just made me brew this, OK...I really just needed more beer and she loves the caramel beers and ambers so it was a no brainer. This was a fun one to brew and I'm very excited to see how it comes out, thanks for the recipe!