This morning I called CZ-USA, had to leave a message for a call back, then got a call back an hour later.
My question to CZ: Is it OK to replace only the hammer spring and, if yes, what is considered minimum that best ensures reliability?
Answer: Yes, 13# is acceptable without changing anything else
*I am not asking for advice, only would like to know if anyone reading this has replaced the hammer spring only and, if so, what were the results
Thanks