Coach P: On #4, I appreciate your attempt to assign a positive motive to the SCYSA's decision on this.
You're certainly right that increasing the bureaucracy associated with guesting will make it harder to get guest players.
In addition, from a player's point of view, the restriction against transfer after guesting means that a player who wishes to evaluate another team during a season should never guest but should simply transfer. I believe that the law of unintended consequences is going to bite some clubs here -- instead of making it less likely that kids will transfer to larger clubs with more access to the higher level tournaments, I believe that this will make it much more likely since the clubs that previously would allow a player to guest will now simply say if a kid wants to get exposure at Disney (for example), they have to join the team.