How is the 60/40 for you? I have the 18/54 with a 60/40 and it's ok with 2 people, but as soon as I have 3 people in there it slows down significantly.
Sweet set up. Question about your anchor system. Do you have a separate battery for your anchor? And do you put your anchor inside the boat when jetting up/down the river?
I have ran 2 batteries before and did not find it necessary. I will put my anchor in the boat if I'm going through waves but chop and riffles are not needed to bring the anchor in the boat.