This is a good point, DJ. AKs is a great hand, but it doesn't have all the straight possibilities of 98s. Also, you end up against a lot of combo hands and other straight draws when playing naked straight draws with broadway connectors, so they can be scary to play. On the plus side, you're much better off when you hit TPTK with it!

Where did the table come from? The SD counts seem a bit high, like maybe they include Gutshots, too? Or maybe I screwed up. But a back of the napkin calculation suggests these aren't all 8-out straight draws.

I didn't include naked Gutshots on purpose, as I don't consider them 8+ out draws, as the 6 cards that make Hero a 1 pair hand may not be enough to put us ahead. I think that's the difference in the two.