A friend and I were out at Delta just over a week ago, on Sunday Dec 9, straight out from the 'marina'. Didn't do very well for being out all afternoon ... kept only 9 perch ranging from 8.5" to maybe 11", plus one small walleye. Threw several perch 'dinks' back. At least we were out of the wind, nice and warm in my 'Ice Cube'. Had to sled out due to the presence of a pressure ridge near shore. Looked like someone approached it with a 4X4, judging by the deep ruts they left in the soft marsh bottom. Ice about a km out was at least 12" inches then, surely quite a bit thicker by now ... and more snow drifts as well.
Have since heard 'rumours' of perch being caught, but no useful details.