Comparing the traitstones needed vs the drop rate (from the other thread):
Minor
Needed = 64.43%
Drop rate = 61.76%
Major
Needed = 14.23%
Drop rate = 26.40%
Runic
Needed = 13.08%
Drop rate = 9.31%
Arcane
Needed = 7.62%
Drop rate = 1.86%
Celestial
Needed = 0.64%
Drop rate = 0.68%
We are getting almost twice as many Majors as we need, while only getting about a quarter of the Arcanes we need. Runics are dropping a little less frequent than needed, but Minors and Celestials are just about perfect ratios.