"Ransom":
Having not posted much of anything here for a while, my eye was caught by your thread after I put up several comments in another section in this same Board about someone's Model 39 collection, which among other things, involved the pistol you are asking about here. So I wrote this response two days ago but didn't have the time to review and post it until just now. Therefore, I apologize if some of what I say here is a bit repetitive or if you have already made up your mind in regard as to how you will proceed but hopefully by including the logic behind my remarks, it will still make them helpful to you...
Mr. Nash: Thank you very much for your thoughtful post. All your advice is most appreciated. You are correct that my knowledge of 3rd Gens is limited. In Aug. 2013 I acquired my first one, a model 4006, after reading about 3rd Generation pistols on this forum and the devoted following they have. The 4006 has been a range pistol so far and I have thoroughly enjoyed shooting it and getting to know how it works. It was such a good experience I decided to get a Model 39 to explore what it would be like to CC one.
When I first got the 3914, I field stripped it and cleaned, inspected, and lubricated it. I found it to be very clean, not gummed up, and showed only normal signs of wear consistent with the external appearance (i.e., minimal wear). At that time I also disassembled the magazine and found the internals to be in very good condition as well. I've gotten the manual and will use it to further my education.
As mentioned in my previous post in this thread (#10), I've run a variety of ammo through it with flawless results, including a good number of rounds of the ammo I plan to carry, Speer Gold Dot 124 gr. I will be shooting it some more before I begin to carry with it.
I especially appreciate your wisdom on leaving the springs alone so long as it functions properly and consistently. That is exactly what I will do. In fact I do not plan to make any modifications whatsoever. I might someday pick up Hogue checkered wood grips to try out, but I am quite satisfied with the factory grips for now.
Kindest regards. Thank you for taking the time to post here.