Get you a bigger pack bro.

In all seriousness, I have been blogging about light weight four season stoves lately: http://AdventuresInStoving.blogspot.com

The first two entries in January wouldn't apply to what you need, but the second two would. I have two more such posts yet to go: the Wind Pro and the Borde stove. You'll see a schedule on the blog. If the latter posts, once they're all up are all too large or too heavy, then plan to go without a stove. In other words, you're not going to get much lighter or more compact for four season use than what I'm posting unless you want some one off custom stuff. I've seen some very nice custom stuff with precision machining and milling, but that kind of stuff is way over my head.

HJ