My favorite Glock is a well-used gen.1 G17 pistol. This particular Glock had a weak/dead original recoil spring in it when I got it..which I immediatly replaced with a new spring/guide assembly. No problems since until the other day when I loaded up a couple mags with various loose ball ammo I've had laying around for years. I was having some issues with the old nasty ammo..some of the problems were 'light-strikes'...denting the primers..but not firing the chambered round. I took the G17 apart..and also stripped the top-end off my G19(which is old but little used)...Comparing the striker spring strength between the two pistols...the G17 spring seems close to the G19 spring...but maybe a bit weaker. Personaly...I think my G17 problems was the nasty ammo..however I was curious about how to check striker/firingpin strength. So just what's the procedure for checking out the striker springs in Glock pistols??