Both the Fear Factor and the Trifecta play well in heavy oil, but neither will cross that many boards, they work best playing straighter angles to the pocket, if you have enough dry to the outside to play a 30 to 35 out to the 5 board you will probably do better with the Agent like ML_Bowler said (I think). On the same lane the FF or Trifecta would play better going straighter up the 10 board. A Passion might allow you to play farther inside and swing it wider than the FF or the Trifecta, if that is the line you are more comfortable with.