I believe there was a snapshot taken as well, but it was never explained one could then move the coins out of iHub while keeping the existing conversion rate against the plus1 coins.
As with just about every other tradable entity or product, the norm is whatever the transaction, the price of the unit would be market value at that time. I would expect advfn would conform to that as well.
Giving us equal number at said date coin for coin should have nothing to do with price if that's what that thought is. Sorry if that isn't the implication.