Those two links were very useful, Daniel, thanks. I guess this is a topic that will come up again and again on here.
I'm excited to get into the snatch. Did my first ever set of snatch reps last Monday on my easy day of the ROP (24kg), the dice giving me 8 minutes, and I settled for 6+6 snatches per minute (30s on,30s off). It's a start and once I do some more one-handed swings with the 32kg and have a session with an SFG, I think that 100 reps in 5mins shouldn't be too far off.
I agree the key is probably added strength. I remember just trying out a snatch with a 16kg only about 4 months ago or so felt extremely brutal, as if my body didn't know what had hit it. Now after over a month on the ROP and gaining quite a bit of strength it feels very doable with a 24kg.