Wow, while this doesn't really shock me noting how particular Roger is about precision, it does actually come as a little bit of a surprise. I'd think he'd have things down to the point he could have them cut from a template and they'd fit very nicely without having to specifically fit each instrument.
When you want to do it perfect you always need to make some final adjustments...think about the way Roger matches each body to a neck and make 'em fit like a glove...same principles apply.

