I'm slowly upgrading my gear and in the process of researching things I've started to wonder how much weight is too much? I'm looking specifically for a new shelter and a new sleep system. My only real requirements for a shelter are that it must hold at least 4 guys preferably with room for packs ( I've pretty much got it narrowed down to a tipi either from seek, kifaru, or TiGoat). For a sleep system, I'm really hoping to find a 0 degree or warmer. As with most gear, you get what you pay for. I've seen the -25 degree backside subzero sleeping bag on camofire at a great price but it's nearly 5 pounds. I'm asking for advice, since I have about as much experience in Ultralite as I do in rocket science. If anyone has any experience/gear recommendations I would love to hear it.