I happen to know Mike had a pretty good opener!
We got none - pumped some water in the Plond but we're sitting in a dry wetland so not many birds around. Had 3 woodies buzz it early but kept going. 2 more buzzed behind us but didn't slow down. Worked two mallards over from their pattern, they looked and looked wanting to commit but eventually moved on to where they had planned on going. That was it!
Let's hope for a nice wet November!