An excellent article below (with some useful pics) demonstrating exactly why it's important to find one's own squatting style and not be peer-pressured into squatting in any one particular way:
The Best Kept Secret: Why People Have To Squat Differently - http://themovementfix.com/the-best-kept-secret-why-people-have-to-squat-differently/
The Best Kept Secret: Why People Have To Squat Differently - http://themovementfix.com/the-best-kept-secret-why-people-have-to-squat-differently/