Nice job, I've always loved your brick packs. It seems though that the filler and normal pack are one and the same? The names and contents are the same.
Actually. Not at all. None of their bricks over-lap. If you read the brick lists they are VERY different.
my regular brick pack finish the X by 1, 2, 3, 4, 6, 8, 10, 12, 16.
And the filler brick pack fills in the X by, 5, 7, 9, 11, 13, 14, 15.
EDIT Ohh shoot! Aparently I linked a pack to the wrong download link! Fixing now!