I assume the Meguiar's is abrasive so should it be used on chrome regularly.
not sure if that's what you meant Angus?
Personally I try to never use an abrasive on chrome, I've read Chrome is like a clearcoat on top of Nichol, it's transparent, it's hard and also porous so you don't want to take any of it off, so a wax gives it shine and penetrates into it giving waterproofing and protection
Ellis just posted ahead of me, basically saying the same thing