Ok, here's the catch.
Some humans are disadvantaged by UCI rules in TT. That's the way it is.
Especially those who are small, have very short legs and long torsos.
Very hard to find framesets that suit them well, also hard to achieve a good aero, legal position on the bike.
What about this:
Putting a special shim under the shoes to raise the rider's seat. For very short riders, that would mean getting access to more bike frame models, but also a better, easier to achieve with the limited parts available now, and more aero fit.
I'm talking half or 3/4 inch now, please dont't send some Paul Stanley stage boots pictures X-P.
I mean, if UCI accepts 2-3 wedges to correct some leg discrepancy, why wouldn't they accept 6 of them ;-) ?
Would that be considered "alteration to material to improve performance" illegally ? I mean look at the track bikes they had in Glasgow !?!!
I don't find anything on the ever infinite UCI rule book.

I know what zillions of Slowtwitchers are thinking: put them on 650c wheels bikes. That option is past expiration date.

Louis :-)