I assume I should go by the date on the back of the tin for cellaring purposes right (instead of the date I received it)? Also, if I ordered a tobacco that was aged before it was sold from the manufacturer will the date on the back reflect that or will it not? In other words: do they do the aging before it gets tinned and then stamp a date on the tin so that it was already aged by the tinned date or do they tin it and let it sit for a while before it gets sold and that's considered aging?