Could you please add PHD2's Predictive PEC? I know ZWO has shown no interest in adding this feature, but it would make guiding that much more accurate.
I know this can be considered an advanced setting, so it could be disabled by default and made available in a submenu in the guiding tab.
The ZWO software is excellent in general (the recent v2.4 release not so much), please consider this to take guiding to the next level!