Just purchased CZ 75D PCR compact. Thinking of installing night sights. Was wondering if anyone has done and looking for tips, how hard to do, tools needed, etc. What really concerns me is front sight. Have to remove roll pin, which should be no problems. CZ custom has punches and replacement pins. But concern is drilling hole in replacement front sight while it is in slide. Don't want to cut into slide. CZ custom does have correct size drill. Anyhow, has anyone done sight replacement and what was it like. Thanks.