Great job! I am scared to just go out there and try something like that... for some reason I think you have to go an 18mph average to even try.
You give me *hope* that I too can try this someday. In fact, I had a guy tell me I should go out and do it... now that I have a tri bike (aero bar setup).
Aero bars... they will give you speed! It does take some time getting use to them... I know it has taken me around 60 miles on mine to get to where I feel like I can somewhat keep a straight line. Well, the line is a little wavy... but I'm darn close!
Keep practing, and I am certain your average will jump up very quickly!
Great job on your TT and for having to courage to go out there and do it!
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather, to skid in broadside thoroughly used-up, totally worn out, and loudly proclaiming: WOW WHAT A RIDE!!!!"