In the UK TT scene aerodynamics have come a long way in that time. Michael Hutchinson for example, was domestic pro up until 2006 (solely focused on TTs) and had plenty of tunnel time. His fastest times over 10 miles (standard distance) are from 2012 and 2014 though at ~40 years old, training much less according to his book "Faster".the sceptic said:what has changed in aerodynamics since 2003?
I was watching Millar's ridiculous world TT 2003 recently, where he faked a mechanical to tone it down towards the end, and his position seemed very high and wide compared to top guys nowadays.
Also, looking at CdA numbers from the wind tunnel in various cycling documentaries (e.g. Sastre in the CSC one, Lance in something or other) it's clear to me they have come down.
Obviously this is moot since Wiggin's reported power figures from 2012 for example show he would have been up there 10 years before that.
To conclude, aerodynamics has come on a lot in the last 10 years (check the specialized wind tunnel testing videos) for all the teams, for british "testers" - this doesn't have much bearing on the doping angle but it can be acknowledged without saying Sky invented aerodynamics so they are cleans