When you say keep giving them veg ferts do you mean in addition to flowering ferts? My flowering ferts have N in them. I've been letting my plants go totally yellow in the last week or two for the past couple grows. I used to keep em green all the way through but i noticed they tasted a lot better if I let them yellow off before harvesting. Yield is reduced a little but the smoke always truns out really mellow.
Yeah, defenatly in addition to your flowering fert.... for example... if your flowering fert says you can use between 1 ml and 5 ml, and your veg fert says the same, you can give 3ml of flowering fert, and lets say.... 1 or 2 ml of vegging fert, depending on if the leaves are going yellow far too early or too fast... and about the bud tastin better after leaves have yellowed, thats when youve flushed some people like to flush 10 days before some 3, and some much more..
I like to flush depending on the size of the pot, but for a 7 liter pot to an 11 liter pot i would flush 14 days.... and the leaves do yellow off in those 2 weeks... but thats cause its eating up allll the fert left in the soil, its basically kind of cruel cause its like starving your plant, but its all for the better of the smoke
till then,
keep it green in love and under JAH LIGHT !!