Okay this is another lesson to mark on the ol' belt.
In the evening of the 4th day (104 hours after pitching) I have a thin layer of krausen forming on the surface and bubbling in the airlock. So it pays to be patient. I just hope I didn't stress-out the little guys too much. We will taste the final results next summer.
My mash tun and kettles are clean an awaiting the next brewday. So I'll just relax and enjoy this crazy hobby.