High quality springs such as used as OEM in the Luger do not wear out progressively. I disagree that a properly functioning Luger should have the mainspring/springs replaced as a tune up. The Luger is a balanced system and replacing properly functioning parts can introduce changes that may reduce functionality. If anything Luger springs tend to be a bit too strong for the Winchester White Box or similar target ammo typically recommended for 9mm Lugers.
If you want to replace properly working old parts because you can/because the pistols are 'old', by that logic get a Glock.
I also cringed at the OP. I'm all for experimenting and finding new techniques and tools. But the chance for marring looks much greater with pliers than the traditional tool. With a little practice the traditional tool works well and doesn't marr. The traditional tool both compresses the spring and the little curve on the tool helps pull it out. I understand pliers compress the spring as well but lack a curve or other means to provide extractive pull. Pliers are therefore IMO inferior to the traditional tool.
As far as Fiocchi/weaker springs etc. etc. in .30 Lugers I've been there and done that. Fiochhi ammo is not powerful enough to operate most Luger actions correctly. Don't take my word for it, search the forums and many experienced collectors say the same thing. IMO it is a mistake to adjust mainsprings on a .30 Luger to try and improve cycling with Fiocchi, before testing with PPU or equivalent stronger ammo. It's unfortunate that PPU is nearly impossible to find right now, but that does not make spring modification a promising option.
|