if you process your tmy in a different developer
you will find the grain.
i process it in coffee, and for years before that
i processed it in a print developer called ansco 130
beautiful grain ...
xxx is a great film too,
buy lots of it cause it is a real drag having to scavenge film and cobble together
another mother lode to finish a project after you start with one thing, and can't get it anymore...

have fun !