I have a Fly Creek UL2, and while you haven't mentioned it as an option, I'd at least caution you to my experience with it (and don't know if it'll apply to the SH or CS). While it is fantastically light and compact (I bought it for lightweight [semi-ultralight] backpacking) for its features, it is advertised as being free-standing though in reality you need to stake/guy it out to get all of the usable space. While it isn't hard to do, at the end of a long day it adds hassle (and a tripping hazard :-) to getting it pitched.

While I've been considering using the Fly Creek for bike touring, I think I've decided I'll carry my ~20yo North Face Tadpole instead. While it's twice the weight [not heavy, just not verging on ultralight], it is completely free-standing.