We harvested our first winter lettuce a couple of days ago from the sowings I did last October with Arctic King. It tasted great. Really smooth and buttery and not at all bitter like I expected for a lettuce that has been in the ground for 6 months! The problem is that only five of them made it through the winter. It’s definitely worth sowing winter lettuce if you have somewhere sturdy to overwinter them (my beautiful poly tunnel got ripped into three pieces by gale-force winds). However, I would recommend that you sow the seed in early September or October. I simply put the seed in too late and the seedlings didn’t have enough time to get strong before they came face to face with the brutal English winter.