i ve already buy one… … but… i have a dificulty of get this controoler working perfectly (especially because i’ve got hi latency) in a pc. somebody knows how a can maxime this controler?

However, the glide plate is my favorite part about playing the instrument, so this is no replacement for the 4000s, though really attractive anyway at that price. I’ve already seen one on craigslist :). I wish the glide rate was dynamically adjustable somehow, instead of requiring the twiddling of a tiny little knob behind a hatch.

@Carina, the 4000s can be transposed to any key you want via controls on the instrument. I usually play in C, but every once in a while read something written for saxophone which is easier for me to play in Bb or Eb.