first off what M.G. (slow release, organic)?
as i have noticed nutrient medium conflict in some cases.

i am assuming they are from clone from their shape
How long was veg And how deep into flower are they?

Are you using the trio of solubles also, and if so where are you now and is it 1/2 or full strenght

did you pre soak your soil before you planted?

you might want to transplant into deeper pots (bigger buds)
oh rusty said it, i try not to parrot

when my soil has n already and im in flower ill ease back on nutes with n and ill run the beastie blooms longer until i see that late flower yellowing start
then ill switch to cha ching, ive been known to run beasties the whole way through its a little denser and there is a little taste differance but nothing dissapointing

i have not used fox farms regular nutes yet but i have used the soluable trio with GH BC and Organic the bc caused alot of conflict in a soil medium and did much better in peat (sunshine) based md. it did great with gh in peat. i like it with org cause you get the benefits of both minimal clean grey ash with the benies of fat great tasting nugs and it does great in soil and peat with less worries.