I can understand competitors getting confused in "the heat of the moment" and putting the wrong stage sticker on their score sheet and handing it to the SO. I cannot understand the SO scorekeeper failing to notice that the stage sticker says "Stage 6" when the competitor is actually shooting "Stage 7". It won't make any difference in the final score if all the proper number of score sheets are turned in - the final number is the final number. And I can't imagine it making any difference other than the "Stage Winner" that appears in bold on the excellent software that has been provided to IDPA. But, the SOs on that stage should have checked.
Chris