SPSG has absolutely nothing to do with geography. It's all about what the crowd is doing. Don't be fooled.
More about CR not grabbing up as much talent for McD than SPSG .
I don't think CR has much to do with recruiting anymore. Just so happens that St. Paul's geographically is a better fit for most of the girls attending. In addition may already have older siblings attending SP, making it a natural fit. Just my 2 cents.
The fact that SPSG has the best coach that got into training a lot of these up and coming girls when they were younger certainly plays a part in it. She identified a lot of talent early and recruited them for years.
People got sick of paying TC $120 for a training session that she barely paid attention to and MG became the main trainer for a lot of these girls.