haha, i think i feel what you are saying op. there probably won't be much yield difference if you wait, they might swell up a bit but i would cut for the high your looking for because the yield difference will be negligible
ec reads your electrical conductivity, aka how much nutrients, ro water will base between 0-50 ppm tap is usually 150-250...most of the numbers in the tap is cal/mag
It doesnt matter if one is actually said gender does it? its how they identify and i agree if possible it would be nice to add the option to change it :)