When we launched, 15 years ago, Pioneer was down at the stern with a pronounced list to port - with no water on board. Kinda ruined the day!
However, by judiciously moving a couple of 100 kg friends around, we worked out how to improve the trim.
It was a big job, but we moved all the batteries (6), from midships, forward into the wheelhouse and to starboard under the dinette. This corrected the problem for 90% of the time, but with both water tanks full, we still have a slight list to port. On the rare occasion we need both tanks, maybe twice a year, I simply use the port tank first.
Batteries are probably the most dense items on board.