That's just a modification for linear FM and has nothing to do with VC phase
shifting. This feature cannot be obtained in such an easy way. By the way: a
module that generates VC phase shifting for sawtooth waves is the A-137-2.

Best wishes
Dieter Doepfer

> Would it make sense to utilize the A-143-9 (with navsmodularlab
> mod) or A-110-4 module(s) to accomplish (a form of) VC phase
> shifting. Or could this (also) be implemented in the future
> planned thru zero version of the A-111-2