[font="'lucida grande'; line-height: normal; white-space: pre"]Obviously the more calories you get (considering they are from healthy sources not from big macs) the bigger you will get and yes of course mass doesn't depend solely on rep range. I've been reading a lot about all this the past 2 days trying to put together a routine and I've talked to many people. I wish I still had this article I read the other day that clearly outlines what rep ranges are ideal for what but I can't find it. Mainly I've always heard for mass the best is 8-12. Should you do 8-12 for the rest of your life? no of course not because your body adapts and it won't be beneficial. In the end the conclusion I've drawn is that there are ALOT of variables to consider in gaining mass such as diet, routine, rep speed, rep range, amount of sets, compound vs isolated exercises, etc.
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[font="'lucida grande'; line-height: normal; white-space: pre"]As for the 4-6, I'm sure you will get bigger with that but i'm still convinced that better for strength, just like 8-12 you still will get stronger, but it's better for mass.
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[font="'lucida grande'; line-height: normal; white-space: pre"]This link kinda cover everything in terms of building mass:
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http://www.discussbodyb...aining-Mass-m111173.aspx [font="'lucida grande'; line-height: normal; white-space: pre"]
[font="'lucida grande'; line-height: normal; white-space: pre"]And it also says 9-12 is best for size