The best IPAs have a certain balance between their hops and their flavor, and there is a continuity to that balance.  That continuity is the Power of 10.  The best balanced IPAs have an IBU score that is 10 times their ABV.  Hence our new Head South 69 IPA being 6.9% alcohol, and 69 IBUs.  All of our Head South IPAs will feature this unique and complex balance – the Power of 10!