I agree with Doug on the blackless set being done at 396. The 4 proposed Blackless "variations" all recently showed up for sale on ebay by the seller who touts them in the description in this thread. All sold for large sums but not to the same buyer, so there may never be a master 400 set

. I actually have one of the 4 and a couple of other print differences in a couple of my other cards from that set
We need a Variation Convention