I haven't finished the HGK yet, so I can't yet vouch for the quality of the finished bud. But from all the reviews that I've read, it really is supposed to be a special smoke, one of the best ever. If so, YAY! I think she's still about 6 weeks out.
The mother from which both of your clones came started thin and scraggly, with little side branching. I have been trying to avoid topping to see what it wanted to do in its natural state, and she's a stretcher. I'm hoping that, since the veg phase looks so sativa, the buds are more sativa in nature than the usual OGK variants. But we're still about a month out from finding out for our selves.