Quintana Roo Kilo owners, question about seat angle

I have a 2008 QR Kilo.  If you have the same bike, I have a question for you.  I think this is pretty specific to this bike, but I might be wrong.

I am trying to adjust the seat angle to bring the nose down.  On the front side of the seat bracket, there's a threaded rod with a little thing in the center (sorry, not technical) that you can turn to bring the nose up or down.  On my bike, I cannot screw it down past a certain point.  Even though it's not even parallel or close to it, and the little thing you turn is still several turns above the bottom.  I wish I had a picture of this...

But I wondered of the Kilo owners:  Are you able to adjust the seat far enough down that it is at least parallel to the ground?  I don't even that that option and my seat looks ridiculous and is uncomfortable.  There's a possible imperfection on the threaded rod that may be stopping it from going down, but I suppose it might be by design.  I don't see why I wouldn't have the option though....   If it sounds like a problem, I'll bring it to the bike shop.  But I was looking for some anecdotal evidence before I drove the bike the 30 miles to get it checked out.   Thanks!