weighting the stern to increase play? trimming the boat bow heavy is how one improves maneuverability in a boat. get the stern out of the water reduces tracking and enhances turning.
The Aquanaut has a rather firm bow. Lightening it allows it to move more easily. It rides over more water and responds better to bow rudders and subtler adjustments to forward stroke.
Different boats have different characteristics. My Romany has a very loose bow which easily gets blown around, so I tend to load the boat more bow heavy.
I am not talking major weight differences here in adjusting the trim of these boats.
I was told years ago that the rule of thumb is to keep things low and as close to the cockpit as possible and ordinarily load the boat 60% aft, 40% forward. I load the Aquanaut at about that, and the Romany at 50-50 if heavily loaded, but more often 60 forward 40 aft.