Chris,
I bought an extra large Loki net from Harris early last year, the mesh feels quite hard and is of a woven nylon construction. It is good at not snagging hooks, does not hold water or more importantley fish slime, on the negative side they do not come with a carrying sling. But in the back of my mind I wonder if this is the type of mesh due to be outlawed and if so will Harris stock a replacement mesh, without having to purchase a complete unit.
Some people advocate chinning all their fish, all I can say is that they are very lucky to have access to so much water where they can crouch in the margin to do this.
I would suggest caution in your choice as these type of nets are not cheap.