I posted a while back about the many different ways I have shortened spurs.
The best way to deal with them is keep an eye on them and keep them short.
Every time I worm my birds, I clip their toenails....lets me know which bird has been dosed. I do it at dusk when the birds are on their roosts.
The roosters have their spurs trimmed then too.
Yeah, I'm leaning toward that approach as well.
I have about 150 birds right now. It takes a couple of evenings to get them all, but well worth the time and effort. Each bird also gets a thorough checkup up close and personal.