This is from Friday morning.

With Jodi's help, I vacuumed the upper surfaces of the ISI. I found a fair amount of particulate, most of which appeared to be metallic flakes, though there was the occasional black fleck.I didn't think to get samples, but there are probably still specks to be collected, there's a lot of ground to cover. Most of what I found was collected in up-facing recesses in the plates, especially around the vertical L4C's. I also wiped down the keel and the larger exposed upper surfaces of the stages. Additionally, I found a bug that had crawled into the vent for a dowel pin and died, which I extracted by flushing with a large quantity of isopropyl.