Is there a difference between infrared films?

Which will produce the finest grain? I don't want it to be big "mushy" grain.

And, which developer, etc, are best suited to the preferred film/effect?

The ultimate subject will be a bride, as unconventional as possible. (I'll test it out on my daughter first.)

Does anyone use infrared in studio with strobes? Is that a silly question?

This will be my first roll of infrared