My 3TTT quill stem seems to point slightly downward, and those are set around 73deg right? On the other hand I didn't feel the bike to be super twitchy.
About the
GIOS: Yes, I wrote my comment regarding the head tube looking rather slack after I saw a picture of one on the website. Now this was probably lens distortion from the camera (fish-eye effect as it is called) that made it look that way, as it was a 3/4 forward-facing view.
I looked at the picture you submitted, your yellow bike, and I no longer would make the same comment.
Your Gios looks quite nice! The angles too. I wish I could take it for a test ride. :-)