I have another question about the 4" nickel Python I found for sale. It seems the store sold the gun awhile ago and the owner brought it back because of something he didn't like about the trigger/hammer. When you cock the gun and hold the hammer so that when you pull the trigger and slowly lower the hammer you can feel it hitting on several catches in the first 1/4" of travel. When you cycle the gun normally DA or SA you can't feel this (because you aren't holding the hammer)and it appears to be normal. Any ideas on what's going on? I tried another Python and the hammer movement was smooth.