During the 1990s, the period you referenced, the federal government was also privatizing a number of crown corporations. Certainly if the government were in that mode, it would need to get their pensions on a solvency valuation, which would appropriately be required in the private sector. Given that no one is actually proposing to privatize Canada Post, I wonder whether it might make sense to treat it more like the rest of the federal public service.
I'd welcome views from Mercer on this as well. I asked similar questions to the other witnesses in the last round, but certainly if folks from Mercer have any views, I'd welcome them.