My question is this: when adding a computer fan did you use the case fan? And did you face the fan down on the eggs or across them? I used the battery charger from my daughters ATV, since we use the car battery charger to charge the battery anyway, and the fan is working well but I was curious as to how you mounted it. A full turner doesn't leave a lot of room. I was thinking of hanging it from the styrofoam top with wire, and I am curious as to how it should be oriented, to blow down on the eggs or across them. Thanks