It depends on how your company does a match, and if they allow you to make contributions that may be a significant portion (or all) of your paycheck for several months (front loading).
In the case of a match, you need to see if they only match each contribution per pay period or if it's a total match at the end of the year. If it's the first, then yes, it would be bad to front load as you'd miss out on any match after the contributions were maxed out.
Basically, you'd need to check the rules with your company to determine if it will work for your situation. But I've read of others doing this on the forum, and others that were not allowed to do so.