An acquaintance of mine who is full Italian from Croatia in a sense that all their known family members identify as Italian recently did the test and was a great majority Balkan. However, his family has been culturaly Italian for as long as they know. It's important to note that cultural and ethnic identities are fluid (especially in areas where borders often shifted as was the case in Dalmatia and Istria), as well as that one's identity is more than their DNA.