That's OK. I know someone who poured lead shot into a plastic bag, wrapped it in small bubble wrap and shoved it into a 32# bass to make it 38 and beat his best friend in a tourney.
Maybe if you need to have a contest you should do it by overall length. Longest to heaviest what does it matter.
If we hunted people what would be a better trophy, a fat guy or a tall guy?
Hard to cheat length.