I have a brand new PT145 and have some concerns about the safety. Sometimes I can pull the trigger and drop the striler when the safety is on. What I mean by that is if I have the weapon in my hand with my finger barely on the trigger and apply the safety with my thumb I can still fire the weapon. This even has happened a few times without touching the trigger at all. I put the safety on and the trigger fires once and then goes into safe mode. Any thoughts? Thanks.