I missed it yesterday too Rangeball. My apologies. As you may know, I use the Steelheads and Muzzys on occasion. I have never had to replace the tips on either...but then again I do have two packs of each which means roughly 12 individual heads all together. Considering I shoot roughly 2 to 3 deer each year that means that I might not use all of the heads, at least once, until after 4 years. At that rate those heads should last me quite some time.

Basically, unless you are shooting one head repeatedly and it is hitting shoulder or other bone on a regular basis then I really wouldn't worry too much about the need to replace or even resharpen them unless the tip look blunted in some manner.