I live about 5 hours north of Ian...or there abouts. We winter outdoors. I would love to try indoor wintering. Maybe a bit easier on the pocket book in feed costs, wrap costs, and live versus death.

That said, until I try indoor, I think i would perfer outdoor. (Maybe that is cause all i know). Our bees get some cleansing flights during most winters. Outdoor bees are still wrapped when the indoor wintered are taken out of storage. This is the one main advantage over indoor wintering. The spring still has some harsh days ahead. Outdoor bees are climate adjusted, indoor bees get a bit of a shock. When the indoor bees are pulled out sometime in early April, ours are still wrapped until end of April maybe early May depending on the type of spring.
In the end though, when we compare notes, most years our losses are close to the same. Indoor the bees come out of winter better, but after the spring dwindle from the adjusting to the cold we end up just about the same...