I find it's easier to lay the rooster on it's back on your lap and take a pair of dog toenail clippers and trim the Spurs until they start to bleed and it takes a while for them to grow back I only have to cut my roosters Spurs like 4 times a year.
They do grow back and if u pull of the spur it is soft and it naturally hardens back into a hard spur but I don't like to do it that way I take dog toe nail clippers and round and snip off the Spurs so they arnt sharp or sharp enough to hurt he hens my rooster is nice so I don't have to worry...