The water was still clear @ 19 FOW. I wouldn't recommend venturing out since the ice is being eroded so quickly from the bottom up. If you did, I would have a partner and a large floatation device, plenty of distance between partners and ropes tied to each. I was never worried about going through, just cracks. I would be worried about going through now. The big difference in the ice between Wed and Thurs was with the auger. Wed was mostly shavings, some chunks, water in hole about 10" down. Thursday was mostly chunks and water appeared in the hole about 4" down. The auger went through the ice almost 2x faster on Thursday. I'd hit the Maumee now and have the boat ready for the weekend after next!