Thanks Fastbolt! I'd read about this spring replacement procedure. That's the main reason I sent it back to Smith for repair. I might've found someone local but the factory seemed the best place to start. I did think about the old factory service center, but with shipping, it gets more expensive. So I decided to let the factory have a go at it. That was a very informative post that you made. Having just acquired this model I'm interested in upgrades. Specifically I was under the impression that because of the weight, that the recoil was light. While it certainly isn't heavy, it does seem heavier than most of my other, more recent, though much lighter 9mms. They're all modern designs, using dual recoil springs, or flat spring. I wonder if my 5906 could benefit from these advances? Are they even available?