Drink if you want, I won't tell you what to do, but here is something you might think about.
4oz of alcohol, and it does not matter where it comes from be it beer or liquor, slows down your metabolism to the point that it takes 72hrs for it to get back to where it was before you had your drinks...this is assuming that you didn't drink anything else with alcohol in it during that 72hr period.
You often hear that moderate alcohol consumption is good for heart health, moderate being the key term, but there are so many other good things you can do to promote a healthy heart...for myself, the benefits of moderate consumption of alcohol is outweighed by the negative aspect I just posted.
Again, do what you want, but realize there is a negative effect that will hinder the progress of your training...BB is tough enough for me already, I don't need to make it any harder by adding in things that can easily be avoided.