If you are breeding said birds then you'll need to look into housing them males separately, or you'll have some major brawls on your hand. Some mature faster some slower but regardless if game one day you will come home and find dead birds.
Personally I see no real use with manfighters as with most that are into games like em tame and game, but you will likely get a few eventually down the line. Id suggest getting him on a 6-8ft tie cord and handle him everyday for a few minutes, maybe cut back on his feed a bit, just spend some quality hands on time with the bird not a stick as he's not a commercial type bird 100% no stick if he's hitting you step on the cord and pick him up massage him etc like I said be hands on. If it doesn't work then off with his head.
Also like havoc said a dremel works great for the spurs stinks a bit but works good.
Personally I see no real use with manfighters as with most that are into games like em tame and game, but you will likely get a few eventually down the line. Id suggest getting him on a 6-8ft tie cord and handle him everyday for a few minutes, maybe cut back on his feed a bit, just spend some quality hands on time with the bird not a stick as he's not a commercial type bird 100% no stick if he's hitting you step on the cord and pick him up massage him etc like I said be hands on. If it doesn't work then off with his head.
Also like havoc said a dremel works great for the spurs stinks a bit but works good.