Saw hero statistic question

[sebeks49]

Hello
I have a question regarding saw hero stats i have exported hands of few players i played with 1k+ hands to seperate database to see how accurate are saw hero stats.
http://puu.sh/zHr1e/bcd4c3b720.jpg
Sceern up so during 1.7k hands i played with this player my vpip/pfr/3bet was 19/13/6 in saw hero panel its 16/12/6 not very big difference but it occurs with many more players do you have idea what may be causing this issue?

[sreticentv]

It's hard for NC to compute the VPIP stat since the way it was built was not with such a broad stat in mind. For this reason, and I'm not sure if you are using the original "hero perceived" stats, but there could be some situations like 5 bet etc that are missed. 3% difference does seem like a lot though but if you are playing tournaments maybe some of the allin situations could also impact the accuracy