Actually, I was going to go somewhere if you didn’t eat gebrokts. 🙂
as for your statement about Pathmark or regular shmura, I believe you are incorrect. All matzahs that we eat (ashkenazim, thin) can’t become chametz. The gemarah says that matzah can’t become chametz.
I’m not sure what you think the difference is between shmura and non-shmura matzah with the metzius of gebrokts. The only difference is the level of shmira.