i made a rye beer 2 mths ago and i used 2 kinds of dry yeast one was a Safale S-04 about a mth past exp date and the 2nd was Safbrew S-33 about 8 mth past exp date.. i ferment temp was about 64 f .. the beer caMe out great. my question is do you think one yeast took over the other in the ferment...