I was on the ice a good part of yesterday with friends who were fishing. They reported a solid 12" in most areas, and they were riding sleds all over. There was a lot of slush on top but it was solid underneath. No real signs of seepage or weakening.
I took a walk on it this afternoon too. If anything, it's more solid than yesterday. The mushy slush that was on top yesterday solidified over night and didn't weaken much today.