SRT trunk choke, or SRT system with an overhead TIP/ redirect in a separate tree, when possible.
After my last cut before dropping the spar,
I'll commonly use a pull-rope with a munter hitch while maintaining my spurs/ flipline as life support when I have finished chunking the stem, ready for the fell. No need to carry an AFS.
Is there a benefit to the AFS that I'm missing?
For ascending a tree/ re-ascending a spar, mostly, I put an SRT device below the Wraptor directly on my climbing line, only using the stretchy Wraptor line if I am not 100% confident in my TIP/ Redirection point . DrenaLine slips a bit in the Wraptor, lately, but the Gibbs will always engage. Barely fuzzed after several years of SRT use.
If I'm solo, I anchor the tail of a speed line at the ground, tension it midline, up top, and use my climbing line to lower my Wraptor out of the drop zone of spar chunks.
Also, if the speed line is long enough to anchor the upper part in the tree at the halfway point, I can lower the Wraptor down the speedline in the other half of the speedline rope.
Alternatively, I will use a 3/8" rigging line for lowering the Wraptor down the speedline, keeping my climbing line free.