Yes, there were a couple:
London (c12)- during the Ciara week (Top 7), she was seen gaining weight throughout the show and Tyra eliminated her for being "in between" plus-size and normal.
Sara (c9)- she was originally cast as a plus-size model but in the Enrique Iglesias week (Top 8), she was seen LOSING weight and Tyra eliminated her for not being "what they chose".
Seymone (c18)- during the Maple Syrup week (Top 10), Tyra praised her for "working her curves" and basically, adorned her figure.
Whitney (c10)- well, she won and is the only full-figured girl to do so...
Kortnie (c12)- she was really in tune with her curves and even when addressed by the other girls about her habits, she confronted them, saying: "My body is a temple, and sometimes my temple wants cheesecake."
Unfortunately, there are no scenes with plus-size women doing well in go-sees because even with the best girls (Alexandra 14, Kasia 16), they always had "the clothes wont fit" drama. Hope this helps