Not sure it will work with your set up, sorry don't know the G-Major unit.

But I placed the TimeFactor in the FXLoop of the modellers I have used… I then ran the TimeFactor in KillDry mode, which only passes the wet signal…. You then mix in the amount of wet dry on the modeller / FX unit.

If I had a preset that I did not want the TimeFactor on for, I just did not enable the FXLoop for that preset.

In fact this is still the way I run my Eclipse and Space now.

But this depends if the G-major had an effects loop that works that way??

Cheers

Martin