i recently purchased a S&W 637-2 for carry not thinking about the hammer. it is the CT model and i have put 300 live rounds thru it and over 2500 dry fires thru it while watching TV and such. my question is how much can i expect to pay for bobbing the hammer since i can't see any single action firing in the future. i love this little j-frame model and don't want to buy a 638 or any other hammerless model out there.