Got off work early today and I was eager to try the 1/4 open method. I found that just bumping the cutouts open a bit seemed to give a noticeable difference in power/acceleratrion over having them wide open and little to no loss of torque on the bottom end. This is all according to the butt dyno , but I think I will run like this when it's time to race and def. have to try it at the track next time.