Hey guys, I was wondering your thoughts on this mcgwire bat..

http://cgi.ebay.com/Mark-McGwire-Gam...item439d76efe6

my concern is that in the authentication it says it possesses identifiable McGwire characteristics. During his Cardinal days, McGwire was very consistent with his pine tar application. This particular bat is his game model but in my opinion does not possess the proper characteristics for an actual game used mcgwire bat. I have found it very difficult to find authentic game used bats from macs cardinal days. This bat is graded as such but I dont believe this to be consistent with his gamers. Any thoughts?