The stringers on my 41 are not continuous in the fact that they change at the bulkheads. Haven't broken stringers but I have pulled one of the bulkheads off the side of the boat. The joint to the stringers and hull bottom are fine. I believe that it was from a violent stuff. Steve was very good about it, I could have sent the boat back to him to be fixed, no charge. Instead I had my glass guy do the repair, Steve sent up the S-glass and new carpet no charge. That was a few years ago, no problems since.
I too was worried about the layout of the stringers, I cut inspection holes in areas just so I could keep an eye on things. Other than the bulk head everything is perfect, not even a stress crack anywhere on the hull. Maybe some of the smaller boats had problems.
There are pics of the layup of my boat on my web page.