Im not entirely sure where all your batteries are located, but if you have them in front of the driver seat, they need to be moved behind the driver seat if at all possible. I was assuming you had 3 behind the driver seat and 2 in the front of the boat somewhere.
Any large amount of weight behind you needs to go elsewhere.
Have a lot of lead weights? remove them or put them behind you.
Have 2 batteries up front? remove them or put them behind you.