Pfitzy,
Thought I would share an interesting observation...
Was at a birthday party on the weekend and a number of my son's recently graduated school friends were there. Chatting with them and all those who opted to play Subbies were really enjoying the experience. Those who went to Shute Shield clubs and were now in the broader 3rd grade colts squad were all not enjoying it. Obviously nothing wrong with Shute Shield clubs, but clearly some misunderstanding for them as to what rugby looked like post school.
From what I can tell, they went to Shute Shield clubs because that's where they thought they were meant to go, but the reality is that given their level of commitment, skill, experience, etc they would be enjoying themselves more if they had of got the upfront decision right and found a Subbies team (especially if they did so with some school friends).
End result, from what I have seen so far, Subbies looks like it can be a great experience. Just need to keep working on getting the message out there as for many kids who have come through the school and SJRU club system all they know is the Shute Shield club universe.