Mixed in key worth it?

Purchased mixed in key. Analyzed 3000 tracks took 36hours. Well finally decided to test the harmonic tagging I based a 1hour set purely on harmonic progression based on how mixed in key analyzed it.
Lets see if I can remember how to embed soundcloud links.

http://soundcloud.com/mosesgonzales/serato-recording-4

http://soundcloud.com/mosesgonzales/serato-recording-4


I believe it did quite well on it. I found some of the more melodic tracks it did far better one. You will notice some tracks a 2 to 3min mix sounds way more harmonically sound then otherS. I believe I started at 2A and went up to 8 or 9 then back down