On Perfect Game I've noticed that some players who were clocked at 2+ events have a strange fluctuation in 60 times. Xavier Avery, for example:
Dec 2005
Ht: 5'11"
Wt: 170
60 time: 6.72
Dec 2006
Ht: 6'0"
Wt: 160
60 time: 6.49
June 2007
Ht: 6'0"
Wt: 185
60 time: 6.17
Jan 2008
Ht: 6'0"
Wt: 185
60 time: 6.56
My only guess is that they may have not had laser timing back then. Any ideas?