It was probably my own fault. I think I picked the wrong swim on the west bank, thinking the SE wind would bring fish my way. It was a swim where I've caught well before, but earlier in the year. As well as missing lightning bites, I hooked and lost several fish and, in retrospect should maybe have changed to a larger hook size of a more normal pattern. Worm was only attacked by smaller fish (accounting for the gudgeon) so I decided to go on the swingtip in the middle of the session and got a frustrating series of touches and pulls, and two lifts that almost had the swingtip horizontal before fading into nothing.
Back on the pole at dusk I tried pellet briefly but got more lightning bites I couldn't hit. On the last cast with a decent size lobworm, I struck into a good fish that came off after a few seconds.
Easy to think that I got this wrong, but even so I could have had seven or eight fish on the bank rather than just three.