Pat, perhaps I remember wrong as I just take this from memory, but wasn't your regular Lilium regale purchased from a different source than your Lilium regale 'Album'? They were from completely different parts of Canada grown under very different condition, with at least one of them spring dug with huge sprouts??? If so that could certainly explain a lot of the difference.
Also I think you need to have some extra patience with spring planted lilies, not only will they of course take longer to show above ground, but there is also usually a lot more difference as to when individual bulbs of the same cultivar first shows above ground. In comparison already established bulbs would appear much more evenly(but certainly still with some variation). At least this is my experience.
