Make the Link response curve almost horizontal if you want only subtle vibrato detuning. Similar effects can be achieved with the CHO block at high speed settings. The Intelligent pitch shifter will not change pitch according to a fixed relationship but to a scales intervals. The G-Force features a number of different scales, plus one global custom scale that you can define yourself. The manual mentions that it s important to stay in tune when using the Intelligent pitch shift.
Long notes sound worse than short ones, but again only when the note ends .
The Fixed 1 and 2 voice sub-algorithm delay works fine though, and when an Intelligent PIT voice is delayed by the DLY block there is no problem.