Not 22 current so maybe I should get back in my box, but its been a long day.
Whilst a solution needs to be found for the 'get some weight up front problem' some of the the things that people put under the seats to make the CG come into limits are not exactly frangible, and whilst there is no stipulation on this in the flight manual, I seem to recall the Robinson safety course discourages things that would hurt if they hit your a*se in a hurry from being stored under the seats. It prevents them from collapsing in the event of an accident. (Never done the course, so this is hearsay).
I used to get students to take big plastic bottles of water with them, which would probably meet both criteria.
GS