Had an hour or so spare this evening so I reworked quilt number one. Despite the many great comments and feedback from the original post I was still unhappy with one or two of the stitches.
So without a loss in width and only 2-3cm length I have reworked it. The sides have been bound in black grosgrain which gives a nice transition between the charcoal grey and teal green. The end channels through which the bungee runs is now much narrower.
This is now my favourite bit of hammock kit. Just need a WBBB to hang above it.