When I first started brewing extract I bought one of these puppies thinking more was better, but I later learned that lots of headspace is bad news bears. I later acquired two more because they were a great deal. Now I've also a 5 gal, and a 6 gal. I am doing my first all-grain brews, two in fact, on friday and saturday, and I am going to use carboys as the primary (any reason why I shouldn't?). Am I okay using these for 5 gallon batches? I used them to dry hop in the past and it turned out okay.. however I'm still new to brewing and I am not sure if that changed it at all. Thanks!