Size-wise, Kevin's high water mark was the '97 Olympia and GP circuit, after that he slowly declined. Furthermore, his insistence to "come off" during downtime resulted in a variety of different physiques throughout these last years. Some shows he would come in grossly undersized, like the '99 ASC, other times he looked close to his '90s form ('01 Grand Prix). What year did you think is his best? I'll make a reply for each year, so give me some time.
2000 his upper body was still huge, but his legs were starting to decline. His waist was also unusually big this year, making his legs appear smaller.