I have had luck with the net. To prevent injury, hold the net over the bird until you are right next to it. Then flip the net, which will momentarily turn the bird. Reach your hand in and grab their ankles and remove them from the net by their feet. It may seem kind of brutal but it prevents the feet from tangling in the net. After they are upside down for a few secs the blood rushed to their head and they calm right down. At this point safely transfer your big spurred rooster to a football hold or however you want to hold him.
If they are young teens or you have gloves on or are unconcerned with getting hurt you can just reach one hand under the net and grab them any old way. If they are small, grabbing by the "shoulders" or right where the wing meets the body works well, with a thumb under one wing and your hand over their back. I have big hands and can lift many of my birds this way, which was showed to me by a state poultry official during testing. The above method should only really be needed with the strongest/biggest spurred "dangerous" birds. I have mostly needed my net for guineas!
This is the net I have.
https://www.premier1supplies.com/p/...NoQksCQUMGyeX7tGf3m8qB_CS03hni7RoCDaMQAvD_BwE
Hope this helps!