I have a real deal 1953 P Bass that's never had a fret job or a dressing. Not only does it have the small vintage fret wire but when the neck was made, the frets were leveled and crowned down close to the fret board. As a result, it fingers and frets EXCELLENT! None of that ugly tapping sound when fretting a note. Working from fret to fret, none of that "speed bump" thing going on like with med jumbo frets.
I've noticed on my basses with med jumbo frets, my fingers are suspended on the strings and hardly touch the actual fret board because the frets are tall.
So, there is a lot to be said for mandolin and banjo frets on a bass. There's a reason for it.
Now guys who play stainless steel rounds...........ahhh, those skinny frets might not be a good idea.