Debate is primarily a contest of effective communication. If quantity of evidence were the only measure, we would not need speakers; each competitor could just submit their written cases, and the heaviest verbiage wins. A good speaker makes use of verbal economy and uses concise language to convey a coherent message and persuasive argument. So debaters who opt to pack their case with so much evidence and verbiage that they have to deliver the message at rapid speeds that do not allow the listener time to decode the message find themselves at a serious disadvantage in my balloting.