This uses the same concept of a continuous ridge line, only adding the webbing for tree protection and support. The goal in this particular illustration was to achieve the “V” technique that prevents the tarp and hammock strap from colliding. If you don’t want/need the “V” and still want the strap, you can use the strap separately.

In some cases, having a webbing strap for the tarp helps prevent damage. Some folks really crank down their tarp lines and the small diameter line can easily dig into the bark.

It isn’t common practice to use a strap with a tarp. The main benefit is damage control. In some places it is just perception, particularly I there is a local rule or ranger that objects.