NVM I forgot that your gear list was attached here. Your tent is really light, and lighter than most bivys in many regards. The bivy will get you an extra 15-20 degrees of insulation on top of the capability of your bag where as a tent usually will only get you around 5 degrees, but it depends on the tent. Also, If i carried a one man tent, I would still carry a tarp because I use it for putting my gear under, not sleeping under, so if I wasn't able to put all my gear in my tent with me, including my pack, bow, food ect, then I would still take the tarp. I like to be prepared for the worst, and I don't trust the weather forecast, so I take the same gear if its forecasted to be snowing every night for a week, or if it is supposed to be 75 and sunny all week.