I have only ever had samples of Ephemeris, or any of the jarred blends that started to sell the last few years. I don't have an in-depth account, but I do know that this is a blend of Sutliff products. It's no secret, as it is on the label and their website. I have no idea where they will source new leaf, since Sutliff is no more.... but, if you love Sutliff Virginias, you might like this, but if you are looking for... something more original, you might be let down.
I'm sorry that I can't give more information on this. I suggest giving it a try. It is a great shop, and they work with their suppliers to get very unique things from time to time. One thing I can suggest is that if you like corporate Virginias, you're probably not going to be disappointed.
Whether this is a repackaged bulk Sutliff VA Slaces... I am not the best at sussing that out, because I have not had the Sutliff VA Slices. But, I have had PS Navy Flakes, ha! Make of that what you will.