I just tried lowering my Hercules stand and it goes down to about 60.5 cm - pretty much identical to the KS-18Z. The Hercules has finer vertical adjustment though - the next level up is a mm or two over 62 cm (compared to 67.2 cm on the Roland KS-18Z).I've also just realized that my Hercules is fine if I slide the keyboard right as far forward as it can go (and move the stand back to compensate), which is a big improvement - not quite perfect but much better! It looks slightly wrong that way to me because there's a lot of the top of the Z sticking out to the rear of the keyboard, but it works fine.