I listened to a poker software designer on Rounders Radio months ago.
He said that the software has noticable tendencies to favor certain behavior.
I picked up on this years ago, but never had it validated. People have even
called me a robot because I play with such software tendencies and am successful. Sitting out for a short while almost always gets rewarded.
I play an afternoon game and get a call to pick up wife, everytime I left for 20min in mid game I cashed. The software designer also went on to say
that the seat positions are very important to focus on. Certain seats will beat another seat all day long with any 2 cards. Just try it! If you get beat twice by the same seat #, avoid at all costs.

Isolate and Destroy
Food For Thought
Good Luck