Here's the results of three days of low water on the Chagrin in the Cleveland area. I finally got what I was targeting, that being smallmouth, but the road was rocky and mostly unfortunately dry (the no water kind, not the fly kind
Day 1: Lots of creek chubs, hogsuckers, sculpins, and other assorted bottom cruisers. Highlight was a creek chub double. Certainly nothing spectacular:
Day 2: SURPRISE! Low water again. Many suckers and other bottom-feeders again. Around midday I came across a giant school of carp and other bottom-feeders. Here are some results (and what they took), which I believe are a black buffalo (globug) and a quillback carpsucker (pheasant tail), respectively. I could be very wrong here (corrections welcome, apologies for the quality of the second photo, its a still from a video), but they were decent-sized fish and both put a good bend in the Allen Olympic 12' 5wt.
Day 3: Finally success! I had 30 minutes to run out and try to finally catch a smallmouth, and after about 10-15 minutes I got a solid take on a deep-running black Dahlberg Diver. The fish was almost immediately airborne and the spey rod was happily bent. There was much rejoicing. The first photo is another still-grab and the second is an iPhone shot.