Yeah, check out RayJardine.com, and his various tarp related articles and books. Most of the time one can raise a tarp with one tree and the bike leaning away at an angle. Just take the stay over the bike to something else that is solid. What this does is mean that while you need two proximate solid things, the height and distance of the bike side object is extremely variable. Also works well at campsites where the trees are around the site, so you can attach the tarp to an adjacent tree and then string it over the bike to something like a picnic table.

Also I prefer a simpler and longer tarp. Since there isn't a tent door inboard the tarp needs to be long enough to shelter sheeting rain etc...

In my opinion though, tarps are as in Mountain Safety Research, are for above the bug line camping. Overall tarp camping is great, but not suited to the roadside environment I am in when bike camping.