Hmmm...just read my own reply again, and to avoid any misunderstandings it was not aimed at "needsize", as his post did contain an explanation. It was aimed at all those know-it-alls giving advice left and right without at the same time giving (or being able to give) any kind of sensible reason for the validity of their advice.
That kind of people should be put on ignore both on this board and in real life. Building your body/strength should be compared to building a car. Any idiot can buy some stuff from Auto Zone, put it together and call it a car. But it's the guy who truly understand why the components should be put together exactly the way he does, who ends up with the winner.
Basically the difference between accepting "Because it is!" as an answer and demanding an explanation why it is that way, makes the difference between ending up as a Yugo or a Lexus.