Taking my 17 year old son shooting tomorrow, with his grandpa and myself, and were working pistol. He has never shot pistol before, only rifle. I'm getting him up at 0830 tomorrow to go over pistol fundamentals with him, like how not to lose a chunk of skin to the slide and how to grip, but could use some recommendations. If it's just me coming up with a list of what to go over I might miss something. He has already had a private lesson with a professional, before I took him shooting with rifles so he is familiar with the 4 rules, I just need to reinforce them as it's a whole lot easier to kill yourself or someone else with a pistol mistake. Fortunately I have a dryfire system for training, that I can let him play with beforehand. Any recommendations from you all?