The covers are amazing. Definitely better than "S/S" and "D/G". And like Picaflor 7/4 said it totally reminds me of the "Together when..." cover. Only better
About the double week thing I am not too sure about it cause Kuu's "stay with me" was releasesd on Christmas Eve of last year and it still counted on the double week. So I guess there is no way of knowing until it charts. But seeing how Kanjani8's singles are limited I don't think it'll be that much of a threat, unless it's over 100,000 copies.