Grab a fist full of your buds and squeeze really really hard. Boom! Dense nugs!
That's what I'd do. Having dense buds is like bragging about the size of your balls. Everyone can see that you're proud but it ain't the main event. Most of my grows aren't that dense but the weight is good and the potency is nice. I think they dry a little better with some space in the buds. And it all burns the same.
So unless you're trying to make something showroom ready, the best questions to be asking are, "how do I make my herb more potent," "how do I make it taste better," "how do I get more dry weight," and "how do I stop blowing all this money on liquid nutes when there's dry stuff that works just as good for a tenth of the price?"
Keep pumping out those grows, though, bud, and you'll be the envy of all your friends in no time.