I just bought 20 packs of ANS6 from the comic book store, and am amazed at what I found. Every pack had at least one insert, including one pack with a South Beached Whale bonus card, and another with both a foil and a South Beached. One pack was just 8 cards, one was 11, and one was 12. A few packs had 4 sets of dubs in them, plus one other title, and the insert. And, I got some stickers that are noticeably off-center, which I don't remember anyone reporting when these were issued. Two of them look like they were next to each other on the sheet, as the extra bit of black border on one edge matches up with what's missing on the other.
I bought these as a Wacky fix, while I wait for my postcards, and was hoping to build a base set, but am nowhere close - I pulled up to 6 of some titles, and 5 of several others. However, I got 2 bonus B5 South Beached, 1 MYO, 4 foils, and 14 WITB, so that's not too shabby!