I have a pin lock system and am at the end of my rope ! I am tearing through co2 because for some reason the gas post on my pin lock keg will not seal when connected to disconnect. I have tried everything, new posts, new o rings, multiple disconnects and nothing helps. I just put some Teflon tape on the post over the o ring and it seems like that may have done the trick. My issue is I like things to work as they should. Any idea why this is happening ? Should I convert to Ball lock ? Are they better ??