Good afternoon, all. I'm a relative newbie to firearms and Glocks, having just picked up a 19 / RTF2 a few weeks ago. My wife and I were watching a Glock dis-assembly/re-assembly DVD last night and onscreen presenter mentioned that he'd replaced the guide rod and recoil spring in his Glock and that it reduced recoil. My wife, who is looking to get a pistol in the near future, was very interested in that statement. I looked up some options on the web for replacement guide rods and springs and found setups from Sprinco and others. Some of these offer dual spring setups (rather like the sub-compact Glocks from what I understand) and claim to reduce felt recoil and muzzle rise. I was wondering what experiences any of you have had with them and do they really reduce felt recoil in a 9mm? And I have read some of the reports that indicate that some of these setups have caused cycling problems with the slide. Thank you for your input.