I'm a newby to Colts and just got finished installing a hammer assy and rebound lever in my Detective Special. I bought the revolver missing those parts and thought I'd attempt to install them. I finished it but not sure about the timing and if it's actually working correctly. The double action pull stacks real heavy towards the end of the pull stroke. Is this normal? I do have a Python as well, I broke it out and of course the double and single action is silky smooth. Didn't expect the Detective Special to be that smooth but thought it would be fairly smooth. Anyways back to the timing issue. I checked the cylinder alignment after dropping the hammer with the trigger still pulled back and it appears to be aligned and locked up tight. The biggest question is does the cylinder, during double action pull, make it's final alignment by latching in the cylinder notch as the trigger breaks. Just as the trigger breaks I can see the cylinder rotate slightly then lock up occurs. It seems like I read somewhere, sometime, that this is correct for a Colt. Is this true? Any advice would greatly be appreciated.