Bud development

I am 5 weeks into flowering Superskunk x California sativa (Dutch Dope) and I was wondering when I can expect the buds to swell up, right now I have alot of white hairs and 4 big colas but not alot of weight. any information on this strain would be great. I really want to get the most outta my girl.
I'm using a 150 watt HPS, soil grow(Expert Gardener perfect mix),1 teaspoon of (Grandma,s Molasses) per gallon of water, and three floros for extra lighting. The grow space is 2 foot wide x 4 foot long x 6 foot 6 tall.
The strain details says 6 to 8 weeks flowering.

You can expect air or fluffy buds since you not using co2. More white hair equal to lots of red hairs when dried. Lots of hair mean fluffy buds.