I do a lot of solo rigging and a I have a few choices on how I do this:
speedline, go down and collect the slings
double whip tackle (DWT) with speed line slings, release the end of your rope and pull it through the sling and back up to you. (leaves the slings on the ground)
DWT again but use a rigSaver
http://www.treestuff.com/store/catalog.asp?item=9062 on the limb to be lowered , once the limb is on the ground remove the rigsaver like you would a friction saver on a MRS system. (sling is returned to you for the next piece to be rigged)
tie a piece on like normal, cut and lower, then tie a midline knot onto your next piece and cut and lower... this works well with natural crotch and wrapping around stubs for friction.
Using speed line slings and alpine butterfly knots work well
I also use a few components put together to allow a more traditional lowering without leaving slings on the ground and without all the rope mixed up in the brush like the last technique. This technique works really well on static rigging and then I switch to something else when it gets more dynamic.
![Screenshot_20181128-125349_Gallery[1].webp Screenshot_20181128-125349_Gallery[1].webp](https://www.treebuzz.com/forum/data/attachments/55/55586-143e14648753834d62ae210eed8ba1b0.jpg?hash=DM0Tm_S1Xm)
girth the webbing sling around your limb and through the steel ring and then hook it with the open hook. tension your rope and cut, once lowered you can shake the hook loose, as you pull the rope back up the red sling pulls the webbing loop free of the limb and brings it all back up to you.