Welll.... It's a little thing, I suppose, but there's also the nuisance where the reservoir on the coffin brake master with dual discs isn't big enough to accommodate the difference in system volume between new pads and used-up pads. Which is a tiny thing in theory, but a massive PITA in practice. IMO.doesn't have anything to do with the reservoirs being remote as far as i know. the advantage is they displace more fluid with each lever-throw. more fluid -> more hydraulic pressure.