I am not up north, VA resident here, but I do a full body clip for my boy. I use to have multiple blankets and layered, but a year ago I bought the Rambo Duo and it was the best purchase ever. Its one blanket, that alone is 100g, but you can buy liners from 100g-400g to swap out according to the weather. Its definitely made the blanket barn lighter and much easier to manage! I believe the Rambo Optimo does the same thing. Definitely worth the expense let alone the Rambo quality to go with it.

I just have the 200-400 liner and my guy mostly stays in his blanket with the 300 fill throughout the winter and never overheats and is always toasty warm