[HandsFree]

Seems to be common theme. My 98 31 Open has a few in the same spot right where one steps down from the upper cockpit. The non skid "shapes" are actually wearing away a bit from the foot traffic.  My cracks however are only a few inches, not all the way to the fish boxes.  There are a couple along the aft fishbox across the hinge but they are really minor.

I'd hope it's cosmetic as well. I saw a story about gel-coat cracking because of compression caused by the straps on the travel lift when boats are hoisted.  The article was focusing on the gunnels and topsides, but if the straps are compressing the whole boat, cockpit center-line would be a weak point between the gunnels. Just a thought?

Mine started out with one crack at the end of last season (October) and spread over winter. The boat is stored in a heated storage every year and it is not lifted by a travel lift it is put on a hydraulic trailer so no pressure on the haul or sides.  I hope that yours don't multiply like mine have.