For those wanting to make their own whoopie slings for hammocks, there is a great site that I've just seen posted up on HF with a calculator telling you exactly the places to splice and the lengths to cut for 1.8 or 2.5mm dyneema braid.
Site here; http://hammocker.com/whoopie-sling
Makes life easy if you've not done them before
Site here; http://hammocker.com/whoopie-sling
Makes life easy if you've not done them before