Hi Art!
Thank you and it all makes sense. When reading the pressure sensor there are several "pauses" in the software so that one idea isn't going to work. When the pressure sensor is installed in the sub there should not be any noticeable influence in performance as the sub is 8" in diameter and 6' long! So a 1/4" hole in the bow to read pressure should not be a problem. Thank you for everything you wrote you gave me a lot to think about!

Best, Ed