Hello Stu

> does anyone have an elegant way of reproducing the legato-enables-slide behaviour of most synths that i know

Why not simply Gate as CV for the A-171

or
CV -> multiple ---------> A150 I/O1 O/I-------> VCO
multiple -> A170 -> A150 I/O2
Gate--------------------> A150 CV

With gate=0V the switch will connect I/O1 to O/I, means CV direct to VCO
With gate=1V (=legato) the switch will connect I/O2 to O/I, means CV via
slwelimiter to VCO.

Florian