I see a lot of pistils, but still very few trichomes, while the pistils seem to change colour allready, seems different from last year when buds were very leafy but those little leafs were full of trichomes. Is this going to change?
You are only a couple of weeks into flower, be patient young jedi, the trichomes will come :)
If your pistils are browning very quickly all over the plant well before it is ready you may have been pollenated so just keep an eye on your seed bracts to look out for seeds.