YOu know: I've been spouting this same thing for years now and everyone looks at me stupid. I get my board flat, radius it and pre-bend my frets and then press them in. I usually never have to level my frets after hand. When I tell people this they look at me like I'm stupid.
However, I've not had anyone complain about one of my fretting jobs easier and in the future if they ever need work done, there is a ton of fret left to work with. So, I'm with you 100% on this one!