Screwed. And the split exposed 2 of them. But I'm happy to report that there was no discoloration or evidence of rot. It was strictly a matter of a 200-plus pound weight (me) dropping from several feet onto the seat.
Now about seat placement... I see you are planning on putting the bow seat about 55" from the bow. I think that's a good idea. I used Gilpatrick's recommendation, which is 48" from the bow, and I have always regretted it. It was too close to the bow when tandem for the bow paddler who had no storage space up front of him/her and when paddled solo backwards from the bow seat, it was too far from the center to make a good solo paddling position!
After repairing my gunnel I had the option to put the seat back in its original spot. I have no doubt that the epoxy repaired gunnel is as strong as ever and would be fine. But since I was never happy with my bow seat placement I have decided to rehang my bow seat closer to center. (This will necessitate building a new seat that is wide enough to hang from that position).
During research I came across this schematic of a Chestnut Pal, which has very, very similar dimensions to Gilpatrick's Wabnaki -- the canoe I built and that you are building. Notice the bow seat placement! 58" back from the tip of the bow! 28.5" from center. Now, the Pal's seats are only 9.5" deep as shown in this schematic and the Wabnaki seats are 15" deep (if you build to Gilpatrick's specs. So your proposed 55" placement from the bow should put the back edge of the bow seat 2.5" inches closer to the center at around 26" (close is better for solo paddling) while still giving ample leg and gear room in front of the bow paddler.
Our own Robin solo paddled a Pal for years, I believe, and I would be interested in hearing his views on bow seat position for the Pal.