You're quite correct: the version of specnu released in 2016 does not seem to have the options rand or squeeze, and specnu slice mode 5 has also disappeared. These were all present in Release 7.0 in Feb. 2014, but have somehow got lost in the 7.1 upgrade. Rand randomises the order of windows, giving a flutter effect, squeeze reduces the frequency range, altering the timbre, while slice 5 inverts the spectrum, creating dramatically different (usually inharmonic) frequency content. All useful functions which would enhance the CDP suite if they could be restored -- please?