About the no.1 being fixed center thing... it's kinda true. I followed s1 and ioi's activities like crazy back then and the only time the ioi girls rotate centers is in their mvs bc it was other member's parts. In cfs, variety, performances (esp pick me and the ending poses) it was always somi->sejeong->yoojung then everyone else. Seriously, just look at their drink cf I think? The screentime there was based on their final rankings. Only the top 3 get individual gigs too. The rest got gigs either thanks to their own company (Chaeyeon) or usually in a pair with one of the top 3. Sometimes visual line (doyeon, pinky, chae) gets to shine in photoshoots/cfs but that's it. So I reaally want Daniel to get as high of ranking as he can bc it was pretty depressing stanning lower ranked members of Ioi ;-;