I have the 650 headpipe and the superjet headpipe and can't tell them apart. My buddy has a new SJ Mod pipe he got for his 840 X2 we are putting together soon. I will let you know if it works out the same.
I was thinking the same, if you look down when riding you will see where the water is breaking out from the side of the hull. I think Pete got it right, and I thought they were too far back the first time I looked at his hull. We are not racing these things, and want the nose up more.The pics can be deceiving. I need to move them back 2 inches