The good news: we've sold out of the second printing of the main rulebook already, far faster than anticipated!
The bad: there's no third printing just yet, but we're prepping it for the printer now, and are hoping to have the book back in stock by mid-September.
Apart from a few minor text corrections and the (as promised) official addition of Poison to the Serpentman profile, there are no changes from previous printings of the book. We're going with a new printer this time (they handled Shocking Tales #2, so the quality will be excellent), so the book may also look slightly different in terms of glossiness and paper weight, as not all printers use the same stock.