Hi Rik, would the prevailing wind have been in that Angler's Face?? (& therefore at your back where you were fishing)
It's not always comfortable fishing facing the wind, but is generally accepted a better option as it drifts natural food towards the Angler + can usually fish closer in.
This alone can the key to success on still water - The bait thing being a more secondary element.
AHHH, if only it were that simple.........
I fish a big gravel pit. It is managed so as to produce few, but good-sized fish.
I usually target the perch that are there - - and have had a fair number of sesquipedalian perch over the years from this and all sorts of waters , but this particular venue is far from being easy fishing.
One day I chose a swim, yes, with the wind in my face, elected to float fish a bunch of lobs, and serendipity, there was a strong undertow out away from my bank that allowed me to trot the tackle out across a submerged gravel bar, At the limit of each trot the undertow petered out, and at that point,. down went the float Plenty of perch that day, including some two-pounders. The next day, same swim, same wind, same tactics, same result..... and again the third day, the best fish just over 3 lb. "I've cracked it !" I thought to myself
Haven't had a perch over 2 lb from that lake since ! Wind in face, even an undertow setting away from the bank, but just because I have found it doesn't mean the perch have.