Hi Rick: regarding the seed viability, I think you're speaking from the position of a well seasoned seeder with extensive hands on experience. I think the general rule of thumb of 30 days maximum and that's what I use around here if nothing else, the sake of method consistency and to avoid sloppiness on my behalf
It's a pretty safe rule of thumb, too; certainly not a harmful one. As beginning seeders progress, they'll learn how to apply flexibility to the general guidelines. I agree that many lily seeds will remain viable for quite some time when properly harvested and stored in a cool, dark location with a pretty constant humidity of 40% or so. But, to be honest, I just didn't feel comfortable about passing that information out to a 'newbie' seeder. Not yet.