I've been using a 10 x 16 sil tarp from Cooke Custom Sewing. It's a very nice tarp, but I've come to the conclusion that I'd be better served by a wing shelter. MSR Zing looks about right but appears to have been replaced by the Rendezvous which retails for less. That makes me wonder why. Anyone have real world beta on how they compare? Any thoughts regarding other worthwhile models or thoughts in general?