Best time for feeding??

hi guys,i have four plants just starting the fourth week of flowering and are looking good,my 600 hps light is on from 9am to 9pm and i usually feed them about an hour after the light has gone on,is there a better time to feed them during lighting cycle to ensure best absorbtion of nutes??

i also tend to feed shortly after light is on as the plant feeds better in its "morning"
i think your timing is spot on for feeding, fromwhat i've read.