Seriously, I would bet that many people claiming that not enough drop is ruining their aero would be proven wrong in a tunnel. The ONLY rationale for b!tching about taller headtubes is if you are more comfortable with a lower headtube. That's it. I can get my back less than horizontal no problem even if i had a raised headtube. The hands and elbow position might not be the same, but my head, shoulder, and back definitely are