Structure Does matter in a battle, it is not the biggest catagory but if the punches were a tie it would decide the winner

Your lines should be about the same length, not to long though or they would be considered Streatched lines

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^ thats a good length line...give or take, that is basically perfect flow if all the lines rhyme

if you had lines like this:

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^ that would be considered streatched lines and it would cause bad flow, even though there the same length it throws off the flow because the lines are so long

Also....in structure dont use

~~~~~, // or Bold, Capitals, """"", ---, == or anything like that excesivly