I am now, finally, a happy man with respect to gas fumes in my rod lockers. I followed the excellent advice in the 1st post of this thread and reduced to problem. The second round action did the trick completely. We put a 4 inch vent under the center seat, the went to the front of the boat, pulled the TM footwell and fronts with panel. As suspected, the front of the rod lockers were open in front and fumes were entering from there. Used same method to fill those gaps. I hope this helps someone.