I am not really a glock person, but came across a good deal on a 26 and bit. Only problem I have with it is that the trigger safety indents my trigger finger badly. Looking into this, I came across the Apex trigger upgrade kit which is supposed to have a flatter faced trigger. Anyway, that led to a rabbit trail of people saying to do a firing pin safety upgrade while at it... so that is the background. My question is, any reason to go with a Zev firing pin safety vs. the Apex? Pricing is similar. I have no familiarity with either one, but already have the Apex trigger purchased. Also, in case it matters, I am thinking of putting the Zev competition spring set in.