Heres a few sizes of Braids that I use quite often.
theres 0.25mm, 1.6mm, 0.75mm, 0.50mm ..
Heres a 3ft purse net in 0.50mm ,
these nets are great for working hedges, e.t.c. as they handle really well and pick up very little debris. Plus hank up really well..
This Net has the last row of meshes in 0.75mm, and as you can see theres not a lot of difference in diameter compared to the 0.50mm..
Like Yourself Andy I think these twine types make really good Nets..
Regards..