Dieselscout - Yes you have your LMB-BG spawning temperature thinking backwards. It would be very hard for BG to spawn before LMB when bass start spawning at water temps of 59F to 60F and BG start spawning at 69F-70Fand BG have been observed to continue spawning clear up to 89F. Fisheries need a new crop of predators each year to keep the new crop of forage fish from becoming over abundant. Balance of prey - predator is important for maintaining good wildlife populations. Overabundant forage fish can limit the recruitment of predators which is not a good thing.
BG are very light colored on top and are very hard to see.. LMB/SMB are very dark on top and very easy to see when beginning swim-up stage, which would be my guess.