Thanks for your input e_v_k.
So I tried a new experiment today and created a 5 step sequence that consists of C D E G A ( pentatonic major ).
Without the quantizer enabled I get that exact sequence played back. If I turn on the internal quantizer and set it to pentatonic major I get D D E G A. So the first note is now a whole tone sharp. If I change to quantizer to chromatic I get C Sharp as the first note followed by all the correct notes.
If I go back to me original sequence and play it back with the quantizer on and set to chromatic I can get the first note to play C by detuning the "tune" knob by about 48 cents but all the other notes that follow are now out of tune.
I'm still sctarching my head on this one.
What I really need is someone else that has a GVCO to try the same experiments and see what results they get.