I obviously don't know any better, but I hear the debate.
I've only done it without coldsetting to about 20 bikes.

Those include an aluminum Cannondale (R700 2.8) and Centurion (Facet) and Schwinn (564), a CF Trek (2500-aluminum rear triangle), a CF Kestrel 200SCi, and 3 CF Centurions (Ironman).

The Schwinn was, by far, the hardest to get the rear wheel into, but it worked.

The steel frames were not too bad, including a 1981 that ran a 5-sp.

None have ever been off-center. None have had any problems.

Ignorance is, thus far, bliss.