Yep that's correct.
And to be explicit on SC price changes, its after 3 games for that player, not just 3 NRL rounds. People who missed R1 or R2 won't change price this week. (So you can wait a week on Harry Grant as one example)
Yep, that's what I had read it as - Grant, Munster, Wilton etc won't move in price after this week.
I've probably got a steep learning curve to make strategy-wise, but at least I feel like I have a handle on the basics.
It also seems vaguely seems familiar - like one of the earlier editions of Fantasy was based on 3 rounds of scoring with similar on-field positions? (like 5-10 years ago?)