Last year they were just damping down the feed pellets the day before mainly 4mm and a few 6 and 8mm. Leaving them overnight in the fridge and the next day the pellets can be hooked nicely.
I did fish there just before Xmas(just before the ice came) and did this and it worked fine for me but to be honest it was the 4mm that did the damage. I got a couple of taps on 6 but I didn`t have a touch on the 8 where as my mate just sat on 8 mm and he had a few fish but they were of a bigger stamp. Also it was only a pleasure session with no one else on the lake(High Pool) Hope this helps?