I used 'loopies' on my DD hammock for over a year before I switched to gathered end diy hammocks.
They only slipped once in all that time when I didnt put the splice over the loops of the straps. The loopie idea worked for me : )
I like your idea, but I echo the concerns of the angled exit.
FWIW, I've never used an SRL and don't intend to. My hammocks comfy anyway I string it up