Unless someone corrects me on this I am not aware of any Skyhook related fatalities. So your argument for RSL over Skyhook is flawed here.
There was the NC tandem double fatality a few years ago. A Cypres fire during the main canopy snivel that caused the reserve bag to fall out and backload the red skyhook lanyard. A cutaway soon followed and the reserve never came out of the bag. In response UPT modified the packing process to include the staging loop to prevent this seemingly rare type of accident. That's the only one I can think of.
As far as I understand it the theory of the skyhook backloading was entirely speculation.
(This post was edited by ChrisHoward on Dec 20, 2012, 9:10 AM)