I have 1 4Z brown 50 yard, 2 6Z green 50 yard, 2 6Z 25 yard, and 2 10Z 5 yard, stop / hedge nets. 100 yards of net will usually circle a warren, then I will put 1 or 2 of the 25 yarders across the warren, or run a 50 yarder up the middle in a zig zag to catch hole hoppers. 4 or 6Z is up to you,they will both catch rabbits. If I was going to have 1 net it would be 50 to 100 yards in 4Z. Good luck.