Never said Doug's work was a "waste of money", just saying throating is always a cure for a handgun chambering problem. I've run into similar chambering problems with new 45 ACPs having "match" chambers and newer commercial 9mms with tighter chambers. Many times using .452 or .357 or larger bullets creates the chambering problem similar to yours. Using a taper crimp die, the Lee FCD or just using .451 or .456 sized bullets has always cured the problem. The problem being the tighter chambers, not too short throats.