I'm considering a BA Copper Spur UL1 after seeing it on a trip recently. I generally backpack in the forested Appalachian Mountains and foothills in all seasons, but I might do some trips out west in the next few years, especially the northwest.
I currently have an 8×10 flat tarp, Moment, Scarp 2, and Hogback (for family trips). I have also tried a Golite Shangri-La 3 with and without floor and a netting perimeter. I decided that I don't like the center pole issue with mids. The Moment is great, but I wouldn't mind carrying a little more weight for more room around my head. The Moment has the extra room in the mid-section, which isn't as useful to me. Also, I don't like how easy it is for my bag or quilt to be accidentally flung onto the wet ground through the lower perimeter mesh. The higher solid sidewalls of the CS would prevent this, and keep out snow a little better. For serious snow, I'd of course be using the Scarp, but I hate to use a two person tent when alone if I can avoid it.
My Moment is 37 oz (41 oz with liner) with added stakes, guylines, sealing, and extra silicone coating on both sides of the floor to overcome the slipperiness issue. With the stakes and guylines I'd use with the CS, it would be 45.6 oz. I'm comfortable with my current pack base weight of 10-11 pounds. When I want to go lighter, I use the tarp and a headnet/repellent.
The Fly Creek UL1 wouldn't be enough of an improvement over the space in the Moment. The Rainbow would give me more room for less weight than the CS, but the netting is still near the bottom, allowing for more wind and snow infiltration.
Any other shelters I should consider?
Feel free to try to talk me out of the CS too.
How high is the peak of the CS fly door? Is it lower than the Moment?


