In a multiple deck (4-8), H17, DAS game is Standing or Doubling (if allowed) the correct play for A7 vs. 2? I have seen the charts in about 10 different books (from BJ bluebook to BJ attack) and some say to STAND and others say to DOUBLE if allowed otherwise STAND. I have also went to blackjackinfo.com and used the BS engine which produced the result I believe may be the correct answer. Thanks in advance for any help with this question.

P.S. I am not trying to iritate anyone by not giving my opinion as to what I think is probably correct for this particular game... I would just like to see an unbiased answer and explanation of why the answer is correct by someone more knowledgeable rather that just seeing a response of "you're right" or "I looked in this book and it says...".