I have a G36 - bought it used a few weeks ago - I called Glock with the SN and it's apparently an older gun - I ran a few boxes of FMJ through the gun and it fires reliably, but when I was field stripping it the other day, I had a bit of a problem with re-assembling the recoil assembly - I eventually got it in, but it seemed a lot more difficult than I always experience with my Glock 23. I've read through this thread about the different types of Glock sub-compact guide rods (http://glocktalk.com/forums/showthread.php?t=1112670&highlight=glock+36+recoil+spring) - I have a stock rod type 2. I'm pretty much convinced that I want to replace the guide rod assembly. Most of what I've read about replacing the rod assemblies (rod and spring), people have used a replacement assembly setup from Wolff - one guy with three different sub-compact Glocks mentioned the Wolff setup with a 19 pound spring on his Glock 36. I know that there are other alternatives, but the Wolff setup with a 19 pound spring seems to be the most straight-forward, reliable, and trouble free - I'm always more interested in reliability than price, but since this is a CC weapon, reliability is even more relevant. Any good reasons not to go with the Wolff setup? Any good reasons to go with a different spring than the 19 pound spring? Thanks in advance for the expert opinions.