Thanks! I'm in zone 5, along Lake Erie in OH. We've had our rough spots this winter, but for my immediate area, all in all, it hasn't been a bad winter. One winter shortly after I moved here we had temps routinely in the range of -20F to -27F, but we haven't really gone much below 0F this winter at all. We've also had years where the snowfall over a handful of hours accumulated as much as 3ft, and we haven't had nearly that this year, either. It's very strange how the weather works sometimes - how can colder than usual in the south translate to warmer than usual in the north??? Yeah, yeah.... don't talk to me about jet streams and all! LOL
I enjoy the experimenting part, myself - what works, what doesn't, what can I improve on.... This was my first year growing peppers, and also my first year attempting to overwinter anything, so it has all been an experiment. I did a lot of reading on the subject before diving into it, myself - grateful to the many who have posted about their own experiences. I cut back on the root system as well as the tops, and put them into smaller pots for the winter, for the same reason you are thinking about it. I am very curious already about how next winter will work out, as I will have a LOT more plants to consider overwintering.