Interesting read, I never thought about having vents point in different directions but it makes perfect sense. My boat has both pointing to the stern and was like that from the factory, I know this as they are riveted on and it looks factory. I tend to forget to turn on the blower but I think my saving grace is I have to trailer my boat 10-15 miles on a hwy to the boat ramp. I know I am playing with fire not running the blower and it's not an intentional thing. I think I am going to do up a small check list, plug, blower, paddles, beer..