Steve,

>1. At what directory level should I store my middle layer subclasses?

Most developers create their own "common" directory as a peer to the Framework's common directory.

<<2. If I use the Quick Start utility to create a project, do I need to modify the Generic project so that it creates subclasses from my middle layer?>>

It depends on how you've done your subclassing...out-of-the-box, all of the application-level classes in the Generic project are subclassed directly from Framework classes. You could either created your own app-level classes, or redefine the existing app-level classes to be subclassed from your common classes.

Regards,