OK, I think I see the two different ways, it's just as I thought.
I wan't to run a speedline from tree to chipper. Then run a pulley with a tag line onto that. Sling the limbs with straps and biners to the pulley and send down, controlling descend with the tagline.
Here's my question, how do you get the limbs farther away from the speedline, if the straps don't reach to sling right to it?
Am I missing something here or do you just have to keep moving the speedline to your next area as you go?
Seems to me you could run a standard rigging handline up and tie off a limb as you normally would, let the rigging crotch take the shockload from the cut and then manuever the piece to the speedline and secure it, as to not shockload the speedline. The speedline when loaded, will definitely be putting some serious side G's on the tree.