Oh, surely not. I know we have at least one gymnast who is scoring out if 6. I can't imagine she ordered BOTH the $100 compulary Leo AND the $170 compulsory one. So I'm sure she'll be wearing a different Leo than the rest of the group of 6's for that first meet, at least. It looks nice when the whole team matches, but I don't think it's mandatory.
The company that makes ours screwed up our order last year, and half the girls had different sleeves (anyone that needed a new one had the new sleeves; anyone with their prior year's leo had the correct sleeves). That was never a problem at any of the meets.