Ron… you got it on your first try: 3.5 season solo shelter. I would love to have something that would weight less than my existing systems (spinnshelter, polycro ground cloth, a16 bug bivy) that is faster/easier to set up and provides a bit more room. The alphamid with mesh door would be pretty close, though I am not sure about ventilation. Specifically what I would like is:
1) less than 1lb
2) walls steep enough so I don't worry about modest snow using it in the shoulder seasons. Spinnshelter is "ok", the Lunar Solo might be better, the Alphamid looks good. The Contrail flattens out too much for my comfort toward the feet.
3) Can handle up to 50mph winds without worrying.
4) Can be set up in a lock down pitch which blocks significant amounts of wind. Spinnshelter in lockdown is adequate for me in this regard. Tarptent squall was a bit too breezy on some trips.
5) Has a bit more headroom in full protection pitch than the spinnshelter in full lockdown. e.g. need a bit more headroom so I can easily sit up and move around enough to pack / unpack / etc under the shelter. I can manage under the spinnshelter… but it can be a pain and I have to be very conscious of my movements.
6) The option of good ventilation with basic bug protection, e.g. at least mesh around the edges to block flying bugs. A high vent would be good.
7) As fast and easy to set up as the tarptent squall. When I am really tired the spinnshelter wants more attention that I want to give it. Lunar Solo seems a bit too temperamental and often seems to require a bit of fiddling / restaking.
8) I would be happy with an intergrated floor or without a floor. If it doesn't have a floor then shelter + groundcloth should be less than 16ozs.
9) Made from a material that doesn't stretch or contract.
10) Extra goodies… a way to attach hang my light, if it uses guidelines little tabs like what Henry is using for no hassle adjustments, a place to do a hanging line to dry things out a bit.