I have a slight scallop (thats what its called) on all of my guitars. Since I play with a very low action too, it makes fretting, vibrato, etc incredibly easy. Especially in the higher frets it makes playing much easier. I've played a 36 fret guitar from Conklin once, and it would have been unplayable past say, the 20th fret if it weren't for the scallop (and even then it wasn't as tiny as it could have been, past 25 it was fretted with a whole tone scale).