@Bigmaec did a scientific test on that. Do we love scientific tests. Anyways, clean drives produced more heat in SC than dirty drives. It makes sense as they use more power and are not really used in SC.
Just put dirty drives and be done.
Or...
Disagree simply for the sake of seeing how long nerds on the internet will argue with you.
Try as they might, these discussions will never reach the same level as open only threads lol.