Glad you like it! :-) And you lucked out with all the barbs the same length. As much as I try to keep them consistent they are cut by hand...
I am looking at a way to make 4 to 5 foot lengths but that may be a while. I too would like to set up some wire fields and this stuff should work pretty well being so flexible. My idea is to make posts with the wire anchored to it and roll it all around a large cardboard tube to store and then be able to unroll and "plant" it at battledays. Worth a try anyway... :-)