Well, as my Sei Singlecut fretted 5 (the one reviewed in the UK's Bass Guitar Magazine) is my 8th Sei bass, and the first singlecut design, I have to say that the design makes the bass more immediate and punchy in it;s response. The stiffness in the neck due to the solid upper horn section makes the neck extremely "fast" in it's attack - I love it.
As for someone's comment regarding "neck twist", I haven't encountered that, although I was worried initially about the truss rod trying to act along the whole length of the neck, only to encounter an immovable section after the 12, 14th fret onwards or so.
What we did was let the bass get "played in" for about 6 months, then re-dress the frets and that resolved any issued in this matter - any raising prior to the re-dress was minimal, but I have had it now for almost 2 years and the playing surface is a constant joy.
As for someone's comment regarding "neck twist", I haven't encountered that, although I was worried initially about the truss rod trying to act along the whole length of the neck, only to encounter an immovable section after the 12, 14th fret onwards or so.
What we did was let the bass get "played in" for about 6 months, then re-dress the frets and that resolved any issued in this matter - any raising prior to the re-dress was minimal, but I have had it now for almost 2 years and the playing surface is a constant joy.
well... I'm just saying, it works for me.