Test results are in...they only detected one breed and that was Rottweiler. He tested at over 75% rott and couldn't find any other breeds present. Which means either hes purebred(which hes not), or the breed was not present in their identified breeds list, http://biopetvetlab.com/dnabreeds.htm, or its such a large amount of breeds mixed together that they couldn't be determined.
Its been bitter sweet, I'll probably never know 100% but at least I know 75%.

Any guesses on the 25%?