@krg :
- Have you completed S&S "Simple" standards with 32, both for swings and get-ups? If yes, you have all the power to do snatches with 24 on light days of ROP, all you need is correct snatch technique and confidence. One of my students completed "Simple" standards, learned proper snatch, but was still scared to them with 24. I told him one thing - confidence. Magic - it worked.
- Please take notice that snatches are done on light days - you do just 50% of the max number of the snatches you could do in that time (2-12 minutes, depends on your dices throw). It means no hurry, working on the technique, waiting on the top of the each snatch, concentration on correct drop. ETK gives you options if your hands are damaged - like doing high pulls. Please re-read ETK, many times.
- Whatever you chose (lighter bell like 20, or less reps with 24), keep your form perfect. As Pavel says, "practice". You will still get your conditioning from medium/heavy days swings.
If there is one word I would describe ROP (or S&S, or basically anything we do in StrongFirst), it would probably be "patience".