I've just levelled some frets and thought that giving the neck a slight backwards bow/convex curve would mean that when the strings are on and tension pulls the neck, it all levels out nicely.
Since then, I've stumbled across many sources saying you have to make the fretboard completely flat.
In fact, while typing this, I've realised that when the strings pull the neck flat, the nut end frets will be higher, meaning higher action towards the bridge frets.
While typing that, I have yet another question- wouldn't levelling with a flat neck have the same result? You'd have to add a slight backwards bow to counter act this and have low action right?
Should I re-level my frets with a completely flat neck?