Yea bra, straight up molasses. You should start using it right away, and I guarantee ,your bud will start to get fatter almost overnight. I know, it sounds fuckin weird, but it totally works. Try 1 Tbps stirred into your water, use it twice a week during flowering right up until you harvest. Like I said before, your plants needs another 2- 3 weeks anyway, so there's lots of time to fatten that baby up with some molasses.

I must admit I've never seen such a leafy top, but this mean there's lots of bud sites in there too somewhere. Between the added light and the molasses, it will stat to widen out, and I wouldn't be surprised if you got that top to be as fat as a beer can when it's all said n' done. You might even harvest more than and 1/2 oz.