What is the purpose of warming-up?  Does what you do for your warm-up matter (i.e. does it matter if it is specific vs. general)?  A quick google search will offer you a multitude of opinions and answers to questions about warming-up.  I’m sure that with the amount of time we take to warm-up at the beginning of each class here at Rogue River CrossFit you can ascertain that we find it somewhat important.