I just got a new SV .40 limited gun, which, I believe, comes with this new thumb safety (as described by Leo). Shot 100 rounds through it and the safety kept loosening up. Am I not turning the little screw tight enough? Does it have to be super tight? There doesn't seem to be any other things you can do to it?! I saw the instructions on SV's site, but the site is down at the moment. Any advice would be much appreciated.
Other than this problem, the gun is real nice.