I've created a single-bars.php file, to change a few specifics for any post in my "bars" category. I'm 99% sure that's how the WordPress hierarchy system works, as I did the same with a plugin by doing single-ai1ec_event.php, with my desired effect working. For whatever reason, my single-bars.php is not being used, and single.php is.
Two questions, any ideas why this is? (I'm 100% the slug is correct)
Side question, what's the difference between single and archive, as I find the descriptions confusing.