I have a Custom 24 and it's awesome. The Custom 24 is a better guitar than the Mira in my eyes. It has better features and just fits me better. Plus it's 24 fret. I haven't played one of the Studios yet but I've heard they are good guitars. I'm just drawn to the Custom 24 more though. Whatever you get, it's sure to be a top notch guitar though. PRS does great work. You could pickup a used Custom 24 and save some money unless you want a brand spankin new one.
-Tom
-Tom