I HAVE SHOT BOTH TRU-BALL AND CARTERS ON AND OFF FOR SEVEN YEARS. THEY BOTH HAVE THEIR UP' S AND DOWN' S. HOWEVER FOR DURABILITY AND QUALITY CARTER IS THE ONE. THE TRU-BALL SET SCREWS ALWAYS SEEM TO MOVE AND STRIP OUT. IF YOU SHOOT ONE AND GET THE TENSION SET WHERE YOU WANT IT SUPER GLUE IT IN PLACE OR IT WILL NOT STAY. THE CARTER' S I SHOOT NEVER HAVE THAT PROBLEM. I HAVE SENT NUMEROUS RELEASES BACK TO TRU-BALL FOR REPAIRS AND IT TAKES 4-6 WEEKS TO GET IT BACK. I JUST SENT IN A CARTER SOLUTION 2 TWO WEEKS AGO FOR REPAIR ON THE SAFETY AND I ALREADY HAVE IT BACK. THERE IS SOMETHING TO SAY FOR CUSTOMER SERVICE. GOOD LUCK IN PICKING A RELEASE. BILL