The #1 ranked designer is the only one able to upload new designs during the judging phase. Usual procedure followed by contest holders is to shuffle rankings if they want to see revisions from designers not in first.
I'll try to make your requested adjustment tomorrow. There already is a very subtle gradient in there, but I can make it more pronounced. I'll post a message here when they are ready and, if you want, you can temporarily adjust the rankings.
Thanks much,
Z