I've had the same broadheads for 3 years now,resharpen after every deer have not had a problem yet.I've killed 12 deer with the same three broadheadsin the last 3 years.Guess it is just personal preference.

I buy replacement blades.

I buy new.

That's a great idea. I never thought of that. I might have to try that.

When I used Thunderheads I replaced the blades after I used them. Since switching to the G5 Montec blades I re-sharpen them.

i use the same thing.

i buy new replacement blades each year, but sharpen them during the season.

I buy new blades.

I am pretty picky and have some weird superstitions etc. I will only use a broadhead once. If it goes into an animal it has done its job and i retire it for use in target shooting. I don't bother with sharpening, replacing blades, more of a confidence thing to me to have a brand spankin new broadhead on the shaft. It doesn't cost me much because i do not shoot that much. I take an elk and possibly one buck with the bow a year. Does i take with the rifle and save my other buck tag for the november rifle season.

I only reuse my Muzzy 100 grain, 4-blade broadhead if it has not been bent or deformed.(None to date) And ONLY after replacing the blades and the Trocar tip.

On my daughters Montec G5, 85 grain heads; Ifollow the Montec sharpening instructions using a three step honing process. First all three edges get a round of side-to-side passes on a 600 grit diamond stone, then the same round on a 1200 grit diamond stone and follow up with a ceramic surface while pushing the headforward as if the broadhead was penetrating. This prevents a roll or curlfrom being left on the edge. They end up razor-shaving sharp and the angle does not get altered.

I just send mine back to Magnus and they replace them for me.