I forgot which user mentione the theory about not as many tax people taking REG this quarter, so maybe non tax people have a better chance. I'm a tax person, and as soon as the April 18 hit, i started studying and after 11 days took the exam. so maybe your theory is right, because even if tax people do take it this wave, we didn't have as much time to study and this levels the playing field.
as a side note, i've done tax for 2 years, and although that's not that long, i can't imagine taking REG without some tax experience. it was insanely difficult and half of the exam seemed to be written in complete jibberish.