I managed to squeeze in some time on Jupiter last night before the haze, and then clouds, shut me down. The seeing was bad here as well, but maybe a little better than Dave had. I was able to see Io's shadow clearly along with the GRS (only my second time catching the GRS this apparition) but just couldn't spot Io itself until it popped off the disc of Jupiter and said "here I am".
My daughter joined me for a little while so she could discuss it with her astronomy teacher today. I had let her know to tell him of the events yesterday. Yep, doing my best to help her suck up.
I did manage one of my fuzzy, poorly resolved cell phone pics. Nothing to write home about but at least you can make out the GRS and Io's shadow. I'll attach just for kicks.
It was definitely not the best observing night but hey... It was an observing night and I haven't had many of those lately.