Sorry, i have smoking all night and my brain doesnt work like it should :D .
I think you could use them together but be careful about over feeding.
How many plants do you have? Can you risk with one plant and feed her with ur combo.
what are you talking about man ?? i went 24/0 for veg and everything was fine . it does not KILL ur plant.
BUT they say only change in 16/8 and 24/0 is electric bill