Grand Power Xcalibur light primer strikes

[muncie21]

OK, so the first couple of thousands rounds with the platform was total bliss.  The pistol shot everything I threw at it and did it accurately and  with no complaints/malfunctions.  Seems this honeymoon may be coming to an end

 

I'm having light primer strikes very frequently, like 1-2 per 20 rounds.  The same reloads function fine in my other pistols and worked well in the GP for the first several 1000 rounds.  I've taken the firing pin out, cleaned the channel and replaced the FP spring, cleaned and lubed 'er up and still having the light strikes. 

 

If I exclude the ammo, I'm left with:

• Hammer spring
• Hammer dragging on???
• Weak recoil spring allowing pistol to fire slightly out of battery
• Firing pin spring too heavy
• Firing pin F'd up

Since I put a factory new firing pin spring and cleaned up the hammer mechanism, I'm kinda  left with, bad hammer spring, weak recoil spring or something's F'd up that shouldn't be

 

Thoughts?

 

[GrumpyOne]

Firing pin worn down. Replace with new or extended firing pin.