The ones I've pointed to in the picture are the ones I was asking about.
sorry bout that, my bad, this was one of my many thoughts that weren't worth a dang. i thought by having the holes in the pipes it would be better when moving the boat with the grid down. it was taking so long to drill all those holes, i tried it without holes and seemed to work fine as long as i was idling. when you asked the question i forgot about that. sorry just another one of my brain farts.
If you are anyone else for that matter would like to see how it works in person pm me and we can set a time in Camden, TN when I am here to go out and drive a few.
Hey guys, just wanted to thank all of you for your thoughts and comments. Still in shock that you guys seem to like it. And anybody that I forgot to reply, sorry but I was kinda caught off guard with all the positive feedback.