From what I understand boat manufacturers play games with this number. Some like Skiers Choice realize ballast will be added and the typical standard ballast amounts from the factory are not part of this weight limit. The weight limit is set on top of the standard ballast. Other manufacturers do not include ballast and therefore the ballast amounts will reduce your placard weight capacity.

It's all smoke and mirrors. read what you want, trust what/who you want etc. Have you seen a SC boat sunk on social media, with all the extra flotation foam and work they put into designing their boats I doubt it.