My retailer expressed some frustration and confusion last week when he was pulling newly released comics for his various standing accounts, and the source of his annoyance was Marvel and its Hulk comics. Until last week, there was one Hulk title: the unqualified Hulk, written by Jeph Loeb. But with the return of old numbering for Hulk comics with Incredible Hulk #600 this summer, the title pulled off a mitosis-like stunt, dividing into two separate ongoing series by different creative teams. Most of his customers interested in Hulk comics were just down for Hulk, even back when it was called Incredible Hulk (before morphing into Incredible Hercules. So ordering and filling accounts last week understandably became a bit of a headache.