I'm intrigued by the 2-biner method. Right now I use a dutch hook on one end like you show in the other method but it connects to a klemheist. The other end has the tarp flyz and I can get very good tension on the line. The tarp is connected to the CRL by two nanobiners attached to two more klemheists. This lets me easily slide the tarp to position.
The 2-biner method seems to be even faster when it comes to positioning but I'll have to work on getting the ridgeline as tight as I like. I do like that it gives you very pronounced vees.