I've recently seen numerous referances to "having to re-harden the Frizzen". Why is this necessary? It seems to me that if the frizzen was properly hardened in the first place, it should never need rehardening. Sure, the flash in the pan is really hot, but the duration of that flash is not going to heat the frizzen enough to ruin the heat treat. It is cold to the touch by the time the arm is reloaded. Leaving a knife in the glove box of your car all day during the summer - even if you are located in Las Vegas, NV (120° in the shade is not uncommon) does not ruin the heat treat of the knife blade(s). Why/How does a momentary flash of heat ruin the temper of a frizzin? It doesn't ruin the temper of the pan itself or lock plate ... I'm sorry, but the entire concept makes no logical sense to me.