Oooh, I'm tickled to see that many have seen the light and converted to pepper crabs - they've always been my preferred choice! Jumbo is okay for black pepper crabs - many other much more delightful options if you guys are ever up for venturing beyond the East Coast options.
There's a great place in the 'burbs that serves a really impressive crab-noodle soup -- the broth is fantastic. Unfortunately the location lacks the fun of going to the sea-side. If anyone is interested I can pass on the contact info for the place. My friends and I usually get the crab soup, pepper & chilli to go, and pig out at somebody's place. Excellent grub.